My NUMBER OPERATIONS Book 5 Name: ___________________________________ Section: ________________ Roll No.: _________ School: __________________________________
Contents 1 Fact Family: 9–19........................................................ 1 2 Breaking Down Numbers.......................................... 16 3 Skip Counting.............................................................21 4 Repeated Addition................................................... 26 5 Repeated Subtraction.............................................. 31 6 Multiplication Tables................................................. 37 Grade 5_Maths.indb 2 07-11-2018 17:11:45
Fact family: 9–19 Let us revise Complete the fact family for each set of numbers given below. Fact families of 9, 10 9 Fact family: 9, 8, 1 8 Fact family: 9, 9, 0 9 1 1 +9= 0 1 9=1+ 2 =9– 0 2 1= – 3 9= + 3 9–1= 4 –9= 4 –8= Fact family: 9, 7, 2 Fact family: 9, 6, 3 1 =9– 2 9– = 7 1 9= + 6 3 +7= 2 9 4 9– = 9 2 6+ = 6 7 3 –3= 4 3=9– Fact family: 9, 5, 4 Fact family: 10, 10, 0 1 9= + 2 +5= 4 1 10 – =0 3 9= + 9 4 4+5= 5 2 10 = +0 3 = 0 + 10 4 10 – 0 = 1 Grade 5_Maths.indb 1 07-11-2018 17:11:48
Fact families of 10, 11 Fact family: 10, 9, 1 Fact family: 10, 8, 2 1 10 – = 2 1 =1+ 9 2 8= –2 9 3 =8+2 2 1 = 10 – 4 + 2 = 10 3 9+1= 4 10 = + Fact family: 10, 7, 3 Fact family: 10, 6, 4 1 + 4 = 10 1 10 = 3 + 2 =4+6 3 4+6= 2 10 – =3 4 10 = 6 + 3 7 + = 10 4 =7+3 Fact family: 10, 5, 5 Fact family: 11, 11, 0 1 = 10 – 5 2 =5+5 1 = 11 – 11 3 5 + = 10 4 5 = 10 – 2 11 – 11 = 3 0 = – 11 4 11 = –0 Fact family: 11, 10, 1 Fact family: 11, 9 , 2 1 11 – = 1 1 + 10 = 2 9 = 11 – 2 3 9+2= 2 2 10 = 11 – 4 =9+ 3 = 1 + 10 4 11 – = 10 2 Grade 5_Maths.indb 2 07-11-2018 17:11:51
Fact families of 11, 12 Fact family: 11, 8, 3 Fact family: 11, 7, 4 1 = 11 – 3 1 7= –4 2 3 + = 11 2 =7+4 3 –3=8 3 4= –7 4 3= –8 4 7 + = 11 Fact family: 11, 6, 5 Fact family: 12, 12, 0 1 11 = + 6 1 0 = – 12 5 2 11 = + 2 12 – 0 = 5 3 11 – 5 = 3 0 = 12 – 4 =6+ 4 12 = + 12 Fact family: 12, 11, 1 Fact family: 12, 10, 2 1 1 = 12 – 1 10 = 12 – 2 1 + = 12 2 = 2 + 10 3 12 – = 11 3 12 = +2 4 12 – 1 = 4 2 = 12 – Fact family: 12, 9, 3 Fact family: 12, 8, 4 1 = 12 – 9 2 3+9= 1 –4= 8 3 + 3 = 12 4 4 3 + = 12 2 4+8= 3 12 = 4 + 4 12 – = 3 Fact Family: 9–19 Grade 5_Maths.indb 3 07-11-2018 17:11:53
Fact families of 12, 13 Fact family: 12, 7, 5 Fact family: 12, 6, 6 1 7= –5 1 6 = 12 – 2 + 7 = 12 2 12 – 6 = 3 =5+7 3 6 + = 12 4 –7=5 4 12 = 6 + Fact family: 13, 13, 0 Fact family: 13, 12, 1 1 – 13 = 0 1 13 = 1 + 0 2 13 = 13 – 2 – 1 = 12 3 13 = + 3 1 = 13 – 4 13 = 0 + 4 13 – = 12 Fact family: 13, 11, 2 Fact family: 13, 10, 3 1 + 2 = 13 1 13 = + 3 2 13 = 2 + 2 10 + = 13 3 11 = –2 3 13 = 10 + 4 13 – 2 = 4 10 = –3 Fact family: 13, 9, 4 Fact family: 13, 8, 5 1 13 = + 4 1 + 8 = 13 4 2 13 – = 2 –5=8 4 3 13 – 9 = 3 8+5= 4 –9= 4 13 = +5 4 Grade 5_Maths.indb 4 07-11-2018 17:11:55
Fact families of 13, 14 Fact family: 13, 7, 6 Fact family: 14, 14, 0 1 –6= 2 = 13 – 7 1 – 0 = 14 3 6 = 13 – 6 4 =6+ 2 14 = 14 – 7 3 14 + 0 = 4 14 – = 14 Fact family: 14, 13, 1 Fact family: 14, 12, 2 1 + 12 = 14 1 – 1 = 13 2 = 2 + 12 3 – 2 = 12 2 14 = 13 + 4 12 + 2 = 3 = 14 – 1 4 14 – = 13 Fact family: 14, 11, 3 Fact family: 14, 10, 4 1 14 = + 3 2 = 14 – 11 1 10 = –4 3 – 3 = 11 4 11 = 14 – 2 + 10 = 14 3 = 4 + 10 4 14 – 4 = Fact family: 14, 9, 5 Fact family: 14, 8, 6 1 14 – 5 = 2 = 14 – 1 8+6= 3 5= – 4 14 – 9 = 5 2 14 – =6 9 3 8 + = 14 4 14 = 6 + 5 Fact Family: 9–19 Grade 5_Maths.indb 5 07-11-2018 17:11:56
Fact families of 14, 15 Fact family: 14, 7, 7 Fact family: 15, 15, 0 1 7= –7 1 0 = – 15 2 7 = 14 – 2 – 15 = 0 3 14 – =7 3 15 = –0 4 + 7 = 14 4 15 = 15 + Fact family: 15, 14, 1 Fact family: 15, 13, 2 1 = 1 + 14 2 1 + = 15 1 2+ = 15 3 15 = 14 + 4 15 – 14 = 2 13 = –2 3 13 + 2 = 4 15 – = 13 Fact family: 15, 12, 3 Fact family: 15, 11, 4 1 3 = 15 – 1 11 + = 15 2 15 – 4 = 2 + 3 = 15 3 = 15 – 11 4 = 15 – 4 3 3 + = 15 4 15 – =3 Fact family: 15, 10, 5 Fact family: 15, 9, 6 1 6 = 15 – 1 – 10 = 5 2 + 9 = 15 3 9= –6 2 5 = – 10 4 9 = 15 – 3 15 = 10 + 4 15 = + 10 6 Grade 5_Maths.indb 6 07-11-2018 17:11:57
Fact families of 15, 16 Fact family: 15, 8, 7 Fact family: 16, 16, 0 1 15 – 7 = 1 16 + = 16 2 15 – =7 2 – 16 = 0 3 8 + = 15 3 16 – = 16 4 =7+8 4 = 16 + 0 Fact family: 16, 15, 1 Fact family: 16, 14, 2 1 16 – = 15 1 – 14 = 2 2 16 – 15 = 2 2 = 16 – 3 16 = 1 + 3 16 – 2 = 4 16 – 1 = 4 16 – = 14 Fact family: 16, 13, 3 Fact family: 16, 12, 4 1 16 = 3 + 1 12 + 4 = 2 = 16 – 13 2 16 – = 12 3 3 + = 16 3 + 4 = 16 4 16 – = 13 4 = 12 + 4 Fact family: 16, 11, 5 Fact family: 16, 10, 6 1 = 5 + 11 1 16 – = 10 2 16 – 11 = 2 10 + 6 = 3 11 + 5 = 3 10 + = 16 4 16 = + 11 4 6 + 10 = 7 Fact Family: 9–19 Grade 5_Maths.indb 7 07-11-2018 17:11:59
Fact families of 16, 17 Fact family: 16, 9, 7 Fact family: 16, 8, 8 1 7+9= 1 16 = 8 + 2 16 – 7 = 2 8+8= 3 16 = + 9 3 16 = + 8 9 8 4 –7= 4 =8+ Fact family: 17, 17, 0 Fact family: 17, 16, 1 1 = 16 + 1 1 17 = –0 2 17 – 1 = 3 1 = 17 – 2 + 17 = 17 4 16 = 17 – 3 0 + = 17 4 – 0 = 17 Fact family: 17, 15, 2 Fact family: 17, 14, 3 1 = 17 – 2 2 17 = 2 + 1 + 3 = 17 3 – 15 = 2 2 17 – 14 = 4 + 2 = 17 3 + 14 = 17 4 14 = 17 – Fact family: 17, 13, 4 Fact family: 17, 12, 5 1 17 = + 13 1 17 – = 12 2 = 13 + 4 2 17 = + 12 3 13 + = 17 3 – 12 = 5 4 – 13 = 4 4 5 = – 12 8 Grade 5_Maths.indb 8 07-11-2018 17:12:00
Fact families of 17, 18 Fact family: 17, 11, 6 Fact family: 17, 10, 7 1 17 = 7 + 1 = 11 + 6 2 = 10 + 3 17 – 7 = 2 17 = +6 4 17 = 10 + 7 3 17 – = 11 4 17 – =6 Fact family: 17, 9, 8 Fact family: 18, 18, 0 1 =8+9 2 –8=9 1 18 = + 18 3 17 – 9 = 4 8 + = 17 2 0 + 18 = 3 = 18 – 0 4 18 = +0 Fact family: 18, 17, 1 Fact family: 18, 16, 2 1 17 + = 18 2 + 1 = 18 1 = 18 – 2 3 1 = 18 – 4 17 = 18 – 2 18 = + 16 3 2 = – 16 4 18 – 16 = Fact family: 18, 15, 3 Fact family: 18, 14, 4 1 + 3 = 18 1 18 – 14 = 2 15 + 3 = 2 = 18 – 14 3 18 = +3 3 14 = –4 4 = 15 + 3 4 14 + 4 = 9 Fact Family: 9–19 Grade 5_Maths.indb 9 07-11-2018 17:12:02
Fact families of 18, 19 Fact family: 18, 13, 5 Fact family: 18, 12, 6 1 18 – = 12 1 5 + = 18 2 = 18 – 12 3 – 6 = 12 2 18 – = 13 4 6 + = 18 3 13 = –5 4 13 + 5 = Fact family: 18, 11, 7 Fact family: 18, 10, 8 1 18 = + 11 1 – 8 = 10 2 7 + = 18 2 + 8 = 18 3 11 + 7 = 3 8 + = 18 4 11 = 18 – 4 18 = 8 + Fact family: 18, 9, 9 Fact family: 19, 19, 0 1 9 + = 18 2 18 = 9 + 1 19 = – 0 3 =9+9 4 9= –9 2 19 – 19 = 3 19 + 0 = 4 19 – = 19 Fact family: 19, 18, 1 Fact family: 19, 17, 2 1 = 19 – 18 2 1 = – 18 1 19 – 17 = 3 + 1 = 19 4 = 1 + 18 2 – 2 = 17 3 17 + = 19 4 2 = – 17 10 Grade 5_Maths.indb 10 07-11-2018 17:12:03
Fact families of 19 Fact family: 19, 16, 3 Fact family: 19, 15, 4 1 16 + 3 = 1 19 – 4 = 2 16 = 19 – 2 = 15 + 4 4 3 – 3 = 16 3 19 = + 4 19 – =3 4 4 + 15 = Fact family: 19, 14, 5 Fact family: 19, 13, 6 1 14 = – 5 1 19 – 6 = 2 = 14 + 5 2 6 = 19 – 3 = 19 – 5 3 19 = +6 4 14 + = 19 4 – 6 = 13 Fact family: 19, 12, 7 Fact family: 19, 11, 8 1 19 – 7 = 1 = 19 – 11 2 19 = 12 + 2 11 = –8 3 12 + = 19 3 = 11 + 8 4 7 = 19 – 4 8 = – 11 Fact family: 19, 10, 9 1 9 = 19 – 2 19 = +9 3 = 9 + 10 4 = 19 – 10 11 Fact Family: 9–19 Grade 5_Maths.indb 11 07-11-2018 17:12:05
Complete the following facts. Time: 5 minutes 1 17 = 9 + 21 + 7 = 15 2 8 = 17 – 22 15 – =8 3 19 = + 10 23 9 = –9 4 13 = +5 24 15 = +9 5 –9=8 25 19 = 10 + 6 9+9= 26 12 = 9 + 7 5= –4 27 = 6 + 5 8 =8+9 28 18 – 9 = 9 9+2= 29 = 10 + 9 10 = 13 – 6 30 = 19 – 10 11 2 = – 8 31 17 = +8 12 = 10 – 3 32 9 = 18 – 13 = 12 – 6 33 = 5 + 9 14 5 + = 12 34 12 = +9 15 9 – 8 = 35 14 – 8 = 16 19 = 9 + 36 – 9 = 9 17 + 8 = 16 37 14 – =7 18 12 – =7 38 11 – =6 19 3 = 9 – 39 19 = +9 20 5 + 5 = 40 9 + = 16 12 Grade 5_Maths.indb 12 07-11-2018 17:12:06
Let us LEARN Complete the following facts. 1 90 = + 80 20 150 – 90 = 2 + 70 = 160 21 = 100 + 90 3 150 = + 80 22 50 + = 110 4 = 80 + 80 23 + 80 = 150 5 + 50 = 100 24 170 – = 90 6 + 40 = 90 25 = 20 + 90 7 = 160 – 90 26 100 = + 80 8 80 + = 150 27 150 – 80 = 9 110 = 60 + 28 = 190 – 100 10 = 120 – 90 29 40 + 70 = 11 – 70 = 90 30 150 – = 70 12 160 = + 90 31 190 – = 100 13 180 = 90 + 32 60 = 150 – 14 170 = 90 + 33 140 – 50 = 15 60 = – 50 34 = 50 + 60 16 + 0 = 90 35 – 70 = 70 17 40 = – 80 36 130 – = 80 18 80 + = 140 37 + 90 = 170 19 150 = 80 + 38 50 = 100 – 13 Fact Family: 9–19 Grade 5_Maths.indb 13 07-11-2018 17:12:08
Complete the following facts. 1 = 1200 – 500 21 = 400 + 700 2 600 + = 1300 22 1000 + = 1900 3 700 + = 1400 23 – 400 = 500 4 1200 – 600 = 24 1800 = + 900 5 1600 = 800 + 25 900 = 1300 – 6 1600 = + 900 26 900 = 1600 – 7 = 1300 – 400 27 1000 = + 500 8 500 + = 1100 28 1100 = + 600 9 = 400 + 800 29 + 900 = 1700 10 800 = 1100 – 30 900 = 1700 – 11 1200 = + 900 31 – 300 = 700 12 = 1400 – 600 32 = 1400 – 500 13 = 1600 – 800 33 900 = – 600 14 300 + = 1000 34 900 + = 1700 15 = 1500 – 800 35 + 900 = 1400 16 1800 = 900 + 36 1300 – 900 = 17 = 800 + 900 37 + 1000 = 1900 18 1800 – = 900 38 500 = 1200 – 19 700 = 1100 – 39 = 1700 – 800 20 500 + = 1000 40 400 + 900 = 14 07-11-2018 17:12:10 Grade 5_Maths.indb 14
Complete the following facts. 1 160 – 90 = 21 900 = 1800 – 2 50 + = 90 22 + 900 = 1600 3 120 = 40 + 23 = 60 + 50 4 90 + 90 = 24 – 80 = 70 5 1400 – = 500 25 190 – = 100 6 90 = – 30 26 900 = – 900 7 = 1200 – 900 27 = 90 + 70 8 600 + = 1300 28 = 1000 + 900 9 90 – = 50 29 – 40 = 50 10 900 = – 700 30 90 + = 170 11 130 – 50 = 31 70 + = 150 12 – 70 = 80 32 700 = – 800 13 800 = 1600 – 33 = 30 + 90 14 = 140 – 90 34 1000 – 800 = 15 130 – 90 = 35 180 = 90 + 16 130 – 80 = 36 600 = 1300 – 17 180 – = 90 37 – 700 = 400 18 = 1800 – 900 38 + 90 = 150 19 900 – = 300 39 1200 – 400 = 20 + 900 = 1000 40 = 900 + 1000 15 Fact Family: 9–19 Grade 5_Maths.indb 15 07-11-2018 17:12:12
BREAKING DOWN NUMBERS Let us revise Expand the following numbers as shown. = Ten Thousands = Hundreds = Ones = Thousands = Tens 1 67049 = + + + + 2 76390 = + + + + 3 68529 = + + + + 4 27328 = + + + + 5 53155 = + + + + 6 74855 = + + + + 7 20313 = + + + + 8 73544 = + + + + 9 78435 = + + + + 10 2 8 0 5 9 = + + + + 11 5 8 7 0 9 = + + + + 12 7 5 2 2 6 = + + + + 13 5 3 8 7 2 = + + + + 14 5 2 6 8 8 = + + + + 16 Grade 5_Maths.indb 16 07-11-2018 17:12:17
Solve the following problems. 2 88226 +37180 1 72352 –61340 3 98085 4 77222 –25082 +22112 5 74179 6 66308 –33821 +22420 7 66554 8 38876 +10001 +10774 9 53644 10 6 9 0 0 0 –32865 –39176 11 8 2 5 7 7 12 2 4 2 5 2 +10321 +72030 Grade 5_Maths.indb 17 17 Breaking Down Numbers 07-11-2018 17:12:19
13 3 8 8 2 7 14 6 1 0 3 7 –30112 +86912 15 9 6 1 4 3 16 1 5 8 3 5 +39937 –13312 17 9 1 0 6 4 18 6 2 6 4 1 +49424 +13041 19 6 1 8 9 6 20 7 5 8 0 8 +26102 –66602 21 1 4 5 5 3 22 1 4 2 3 2 +93339 +67918 23 3 1 7 0 2 24 8 6 4 5 0 +24150 –73000 18 07-11-2018 17:12:19 Grade 5_Maths.indb 18
Round off to the nearest Round off to the nearest hundreds. thousands. 1 1541 = 1500 1 79773 = 80000 2 1154 = 2 68181 = 3 4121 = 3 42163 = 4 2519 = 4 44645 = 5 6843 = 5 62211 = 6 4731 = 6 62848 = 7 4641 = 7 55269 = 8 2436 = 8 62534 = 9 7855 = 9 85996 = 10 7984 = 10 39581 = 11 7992 = 11 52623 = 12 3819 = 12 69687 = 13 8644 = 13 15275 = 14 4756 = 14 22214 = 15 1969 = 15 68916 = 16 7321 = 16 39993 = 17 9341 = 17 21542 = 18 9387 = 18 54115 = 19 5884 = 19 29776 = 20 1731 = 20 57338 = Grade 5_Maths.indb 19 19 Breaking Down Numbers 07-11-2018 17:12:21
Estimate your answer to the nearest hundreds. Example: 4622 – 2413 = 4600 – 2400 = 2200 1 7639 – 3187 = 9 9447 + 8258 = 2 5335 – 1238 = 10 3429 + 4793 = 3 8625 + 3446 = 11 5527 – 1921 = 4 9281 – 1841 = 12 2927 + 2999 = 5 5272 – 3498 = 13 2144 + 2438 = 6 9454 – 6698 = 14 7194 + 7223 = 7 3632 + 5456 = 15 3562 – 2974 = 8 3281 – 1677 = 16 3283 + 9234 = Estimate your answer to the nearest thousands. 1 81436 + 48715 = 130000 9 83413 + 36954 = 2 95854 – 67353 = 10 68149 – 51328 = 3 74742 + 37263 = 11 61586 + 75449 = 4 95416 + 89297 = 12 73596 – 48234 = 5 73271 – 19172 = 13 64396 – 44383 = 6 98428 + 56237 = 14 91797 – 46913 = 7 51532 + 65731 = 15 54466 – 35741 = 8 63876 + 77798 = 16 82521 – 53316 = 20 07-11-2018 17:12:23 Grade 5_Maths.indb 20
Skip Counting 21 Let us revise 07-11-2018 17:12:25 Practise skip counting: 2 to 8 Complete the series. 1 76, 70, 64, 58, ___ , ___ , 40, 34, ___ , 22, 16 2 89, ___ , 77, 71, ___ , 59, ___ , ___ , 41, 35, 29 3 10, ___ , 26, 34, ___ , ___ , 58, 66, 74, ___ , 90 4 27, 32, ___ , ___ , 47, 52, ___ , 62, ___ , 72, 77 5 96, ___ , 90, ___ , 84, 81, 78, 75, ___ , 69, 66 6 109, 106, 103, 100, ___ , 94, 91, ___ , 85, 82, 79 7 12, ___ , ___ , 24, 28, 32, ___ , ___ , 44, 48, 52 8 19, 21, ___ , 25, 27, ___ , ___ , 33, 35, 37, 39 9 11, ___ , 21, 26, ___ , ___ , 41, 46, ___ , 56, 61 10 11, 13, 15, ___ , 19, 21, ___ , ___ , ___ , 29, 31 11 62, ___ , ___ , ___ , 50, 47, 44, 41, ___ , 35, 32 12 22, ___ , 34, 40, 46, 52, 58, 64, ___ , 76, 82 13 22, 27, 32, 37, ___ , 47, ___ , ___ , 62, ___ , 72 14 14, 21, ___ , ___ , ___ , ___ , 56, 63, 70, 77, 84 15 16, ___ , ___ , 37, ___ , 51, 58, 65, ___ , 79, 86 16 100, 92, 84, 76, ___ , ___ , 52, 44, ___ , ___ , 20 Grade 5_Maths.indb 21
Practise skip counting: 2 to 8 Fill in the blanks. 1 The series 111, 103, 95, 87 represents skip counting by ____. 2 The series 75, 71, 67, 63 represents skip counting by ____. 3 The series 20, 22, 24, 26 represents skip counting by ____. 4 The series 26, 32, 38, 44 represents skip counting by ____. 5 The series 22, 29, 36, 43 represents skip counting by ____. 6 The series 98, 96, 94, 92 represents skip counting by ____. 7 The series 92, 89, 86, 83 represents skip counting by ____. 8 The series 12, 20, 28, 36 represents skip counting by ____. 9 The series 18, 21, 24, 27 represents skip counting by ____. 10 The series 117, 113, 109, 105 represents skip counting by ____. 11 The series 30, 36, 42, 48 represents skip counting by ____. 12 The series 113, 106, 99, 92 represents skip counting by ____. 13 The series 119, 114, 109, 104 represents skip counting by ____. Show skip counting on the number line. 1 Skip count by 5: Start at 37 and skip count backwards 5 times. 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 22 Grade 5_Maths.indb 22 07-11-2018 17:12:27
2 Skip count by 3: Start at 36 and skip count backwards 7 times. 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 3 Skip count by 7: Start at 13 and skip count forwards 2 times. 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 4 Skip count by 8: Start at 58 and skip count backwards 3 times. 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 5 Skip count by 4: Start at 35 and skip count backwards 5 times. 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 6 Skip count by 2: Start at 17 and skip count forwards 8 times. 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 23 Skip Counting Grade 5_Maths.indb 23 07-11-2018 17:12:28
7 Skip count by 7: Start at 1 and skip count forwards 3 times. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 8 Skip count by 5: Start at 53 and skip count backwards 3 times. 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 9 Skip count by 2: Start at 9 and skip count forwards 9 times. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 10 Skip count by 8: Start at 52 and skip count backwards 2 times. 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 11 Skip count by 6: Start at 49 and skip count backwards 2 times. 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 24 Grade 5_Maths.indb 24 07-11-2018 17:12:29
12 Skip count by 3: Start at 21 and skip count backwards 5 times. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 13 Skip count by 4: Start at 21 and skip count backwards 3 times. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 14 Skip count by 2: Start at 25 and skip count backwards 6 times. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 15 Skip count by 5: Start at 1 and skip count forwards 4 times. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 16 Skip count by 3: Start at 16 and skip count forwards 6 times. 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 25 Skip Counting Grade 5_Maths.indb 25 07-11-2018 17:12:29
Repeated addition 07-11-2018 17:12:33 Let us revise Practise repeated addition: 2 to 8 Fill in the blanks. 1 5 + 5 = ___ 2 2 + 2 + 2 = ___ 3 3 + 3 + 3 = ___ 4 5 + 5 + 5 + 5 + 5 + 5 + 5 = ___ 5 4 + 4 + 4 = ___ 6 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = ___ 7 6 + 6 + 6 + 6 + 6 + 6 = ___ 8 8 + 8 + 8 + 8 + 8 + 8 + 8 = ___ 9 7 + 7 + 7 + 7 + 7 + 7 + 7 = ___ 10 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = ___ Complete the missing numbers. 1 3 × ___ = 3 + 3 + 3 + 3 + 3 + 3 2 6 × ___ = 6 + 6 + 6 + 6 + 6 + 6 + 6 3 8 × ___ = 8 4 5 × ___ = 5 + 5 + 5 26 Grade 5_Maths.indb 26
5 4 × ___ = 4 + 4 6 8 = 8 × ___ 7 2 × ___ = 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 8 6 × ___ = 6 + 6 9 7 × ___ = 7 10 4 × ___ = 4 + 4 + 4 11 2 + 2 + 2 + 2 + 2 + 2 = 2 × ___ 12 7 + 7 + 7 + 7 + 7 = 7 × ___ Write an expression to count the total number of blocks given below. 1 4+4+4+4+4+4=4×6 Solution: 2 Solution: 27 Repeated Addition Grade 5_Maths.indb 27 07-11-2018 17:12:34
3 07-11-2018 17:12:35 Solution: 4 Solution: 5 Solution: 6 Solution: 28 Grade 5_Maths.indb 28
Let us LEARN Conversion of multiplication facts Solve the following questions. 1 8 × 7 = 7+7+7+7+7+7+7+7 = 8 + 8 + 8 + 8 + 8 + 8 + 8 = 7 × 8 = 56 2 7× = 7+7+7+7+7 =5× = = 3 5× = 3+3+3+3+3 =3× = = 4 × 2 = 2+2+2+2+2+2+2+2 = = ×8= 5 ×5= = 5+5+5+5+5+5 = × 6 = 6 ×2= 6+6 = ×6= = 7 8 × = 8+8+8+8+8+8+8 = =7× = 8 4× = 4+4+4 = = ×3= 29 Repeated Addition Grade 5_Maths.indb 29 07-11-2018 17:12:36
9 7× = = 2+2+2+2+2+2+2 = 2 × = 10 8 × = 8 + 8 + 8 + 8 + 8 + 8 + 8 = =7× = 11 8 × = = 3+3+3+3+3+3+3+3 = 3 × = 12 × 5 = = 3+3+3+3+3 = × 3 = 13 × 5 = = 2+2+2+2+2 = × 2 = 14 6 × = 6+6+6+6 = =4× = 15 ×5= 5+5+5+5+5+5 = = ×6= 16 ×5= 8+8+8+8+8 = = ×8= 17 8 × = 8 + 8 + 8 + 8 + 8 + 8 + 8 = =7× = 18 7 × = 7 + 7 + 7 + 7 + 7 + 7 = =6× = 30 07-11-2018 17:12:37 Grade 5_Maths.indb 30
Repeated subtraction 31 Let us revise 07-11-2018 17:12:39 Practise repeated subtraction: 2 to 8 Fill in the blanks. 1 40 – 4 – 4 – 4 – 4 – 4 – 4 – 4 – 4 – 4 = ___ 2 27 – 3 – 3 – 3 = ___ 3 80 – 8 = ___ 4 40 – 4 – 4 – 4 – 4 – 4 – 4 – 4 = ___ 5 66 – 6 – 6 – 6 – 6 – 6 – 6 = ___ 6 44 – 4 – 4 = ___ 7 45 – 5 – 5 = ___ 8 30 – 3 – 3 = ___ 9 54 – 6 – 6 – 6 – 6 – 6 – 6 – 6 – 6 – 6 = ___ 10 70 – 7 – 7 – 7 – 7 – 7 = ___ Complete the missing numbers. 1 30 – ( 2 × ___ ) = 30 – 2 – 2 – 2 – 2 – 2 – 2 – 2 – 2 – 2 2 112 – ( 8 × ___ ) = 112 – 8 – 8 3 44 – ( 4 × ___ ) = 44 – 4 4 44 – 4 – 4 – 4 – 4 = 44 – ( 4 × ___ ) Grade 5_Maths.indb 31
5 27 – 3 – 3 – 3 – 3 – 3 – 3 = 27 – ( 3 × ___ ) 6 30 – 3 – 3 – 3 – 3 – 3 – 3 – 3 – 3 – 3 = 30 – ( 3 × ___ ) 7 80 – 8 = 80 – ( 8 × ___ ) 8 44 – ( 4 × ___ ) = 44 – 4 – 4 – 4 – 4 – 4 – 4 9 84 – 7 – 7 – 7 – 7 – 7 – 7 – 7 = 84 – ( 7 × ___ ) 10 44 – ( 4 × ___ ) = 44 – 4 – 4 – 4 11 72 – ( 8 × ___ ) = 72 – 8 – 8 – 8 – 8 – 8 – 8 – 8 – 8 12 45 – 5 – 5 – 5 = 45 – ( 5 × ___ ) Write an expression to show the repeated subtraction shown on the number line. 1 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 Solution: 2 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Solution: 32 Grade 5_Maths.indb 32 07-11-2018 17:12:42
3 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Solution: 4 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Solution: 5 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 Solution: 6 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 Solution: 7 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Solution: 33 Repeated Subtraction Grade 5_Maths.indb 33 07-11-2018 17:12:45
Let us learn Conversion of multiplication facts Convert the following multiplication facts into division facts. 1 5 × 10 = 50 50 ÷ 10 = 5 50 ÷ 5 = 10 2 8 × 5 = 40 3 3 × 5 = 15 4 8 × 3 = 24 5 6 × 5 = 30 6 8 × 3 = 24 7 7 × 3 = 21 8 6 × 10 = 60 9 7 × 9 = 63 10 7 × 4 = 28 11 7 × 8 = 56 12 3 × 8 = 24 13 5 × 10 = 50 14 3 × 1 = 3 15 7 × 7 = 49 16 4 × 5 = 20 17 8 × 7 = 56 18 4 × 2 = 8 34 Grade 5_Maths.indb 34 07-11-2018 17:12:47
19 6 × 7 = 42 35 20 4 × 2 = 8 21 6 × 9 = 54 Repeated Subtraction 22 4 × 1 = 4 23 4 × 2 = 8 07-11-2018 17:12:48 24 7 × 7 = 49 25 2 × 9 = 18 26 3 × 7 = 21 27 8 × 3 = 24 28 8 × 1 = 8 29 2 × 8 = 16 30 3 × 2 = 6 31 6 × 2 = 12 32 8 × 4 = 32 33 3 × 4 = 12 34 4 × 3 = 12 35 2 × 5 = 10 36 6 × 8 = 48 37 6 × 3 = 18 38 7 × 1 = 7 39 5 × 5 = 25 40 7 × 9 = 63 41 2 × 1 = 2 42 6 × 1 = 6 Grade 5_Maths.indb 35
43 5 × 8 = 40 07-11-2018 17:12:49 44 7 × 8 = 56 45 6 × 10 = 60 46 2 × 6 = 12 47 3 × 7 = 21 48 3 × 5 = 15 49 8 × 10 = 80 50 4 × 10 = 40 51 8 × 5 = 40 52 6 × 4 = 24 53 2 × 4 = 8 54 3 × 6 = 18 55 5 × 6 = 30 56 4 × 2 = 8 57 6 × 8 = 48 58 6 × 6 = 36 59 7 × 10 = 70 60 8 × 7 = 56 61 5 × 2 = 10 62 6 × 5 = 30 63 6 × 7 = 42 64 8 × 8 = 64 65 5 × 4 = 20 66 5 × 10 = 50 36 Grade 5_Maths.indb 36
Multiplication tableS Let us revise Fill in the blanks. 7 6 Practise table of 1 1 ×1= 2 2×1= 1 Complete the table. 3 ×1= 4 8×1= 1 1×1= 5 4×1= 2 1×2= 6 ×1= 3 1×3= 7 9×1= 4 1×4= 8 3×1= 5 1×5= 9 10 × 1 = 6 1×6= 10 5 × 1 = 7 1×7= 8 1×8= 9 1×9= 10 1 × 10 = Solve the following. 6 1 × 70 = 7 1 × 1000 = 1 20 ÷ 1 = 8 1 × 20 = 2 800 ÷ 1 = 9 1 × 50 = 3 100 ÷ 1 = 10 1 × 60 = 4 500 ÷ 1 = 5 900 ÷ 1 = 37 Grade 5_Maths.indb 37 07-11-2018 17:12:54
Practise table of 2 Fill in the blanks. Complete the table. 1 9×2= 2 2×2= 1 2×1= 3 6×2= 2 2×2= 4 × 2 = 20 3 2×3= 5 × 2 = 10 4 2×4= 6 ×2= 8 5 2×5= 7 8×2= 6 2×6= 8 7×2= 7 2×7= 9 1×2= 8 2×8= 10 × 2 = 6 9 2×9= 10 2 × 10 = 6 2 × 20 = 7 2 × 60 = Solve the following. 8 2 × 90 = 9 2 × 1000 = 1 1800 ÷ 2 = 10 2 × 100 = 2 2000 ÷ 2 = 3 1200 ÷ 2 = 07-11-2018 17:12:57 4 80 ÷ 2 = 5 40 ÷ 2 = 38 Grade 5_Maths.indb 38
Practise table of 3 Fill in the blanks. Complete the table. 1 × 3 = 21 2 6×3= 1 3×1= 3 ×3= 6 2 3×2= 4 ×3= 3 3 3×3= 5 × 3 = 30 4 3×4= 6 4×3= 5 3×5= 7 ×3= 9 6 3×6= 8 8×3= 7 3×7= 9 × 3 = 27 8 3×8= 10 5 × 3 = 9 3×9= 10 3 × 10 = 6 3 × 1000 = 7 3 × 60 = Solve the following. 8 3 × 200 = 9 3 × 70 = 1 180 ÷ 3 = 10 3 × 800 = 2 240 ÷ 3 = 3 150 ÷ 3 = 39 4 300 ÷ 3 = 5 1200 ÷ 3 = Multiplication Tables Grade 5_Maths.indb 39 07-11-2018 17:12:59
Practise table of 4 Fill in the blanks. Complete the table. 1 2×4= 2 × 4 = 32 1 4×1= 3 × 4 = 16 2 4×2= 4 10 × 4 = 3 4×3= 5 ×4= 4 4 4×4= 6 6×4= 5 4×5= 7 × 4 = 36 6 4×6= 8 × 4 = 28 7 4×7= 9 × 4 = 20 8 4×8= 10 3 × 4 = 9 4×9= 10 4 × 10 = 6 4 × 800 = 7 4 × 500 = Solve the following. 8 4 × 60 = 9 4 × 20 = 1 160 ÷ 4 = 10 4 × 40 = 2 2400 ÷ 4 = 3 3600 ÷ 4 = 07-11-2018 17:12:59 4 2800 ÷ 4 = 5 200 ÷ 4 = 40 Grade 5_Maths.indb 40
Practise table of 5 Fill in the blanks. Complete the table. 1 2×5= 2 6×5= 1 5×1= 3 4×5= 2 5×2= 4 3×5= 3 5×3= 5 × 5 = 25 4 5×4= 6 1×5= 5 5×5= 7 × 5 = 50 6 5×6= 8 8×5= 7 5×7= 9 × 5 = 45 8 5×8= 10 7 × 5 = 9 5×9= 10 5 × 10 = 6 5 × 40 = 7 5 × 600 = Solve the following. 8 5 × 90 = 9 5 × 200 = 1 500 ÷ 5 = 10 5 × 1000 = 2 350 ÷ 5 = 3 200 ÷ 5 = 41 4 250 ÷ 5 = 5 3000 ÷ 5 = Multiplication Tables Grade 5_Maths.indb 41 07-11-2018 17:12:59
Practise table of 6 Fill in the blanks. Complete the table. 1 4×6= 2 × 6 = 36 1 6×1= 3 × 6 = 42 2 6×2= 4 ×6= 6 3 6×3= 5 5×6= 4 6×4= 6 10 × 6 = 5 6×5= 7 9×6= 6 6×6= 8 3×6= 7 6×7= 9 × 6 = 12 8 6×8= 10 8 × 6 = 9 6×9= 10 6 × 10 = 6 6 × 50 = 7 6 × 30 = Solve the following. 8 6 × 100 = 9 6 × 400 = 1 1800 ÷ 6 = 10 6 × 200 = 2 240 ÷ 6 = 3 4200 ÷ 6 = 07-11-2018 17:12:59 4 6000 ÷ 6 = 5 360 ÷ 6 = 42 Grade 5_Maths.indb 42
Practise table of 7 Fill in the blanks. Complete the table. 1 9×7= 2 7×7= 1 7×1= 3 × 7 = 70 2 7×2= 4 ×7= 7 3 7×3= 5 8×7= 4 7×4= 6 × 7 = 28 5 7×5= 7 3×7= 6 7×6= 8 × 7 = 35 7 7×7= 9 2×7= 8 7×8= 10 6 × 7 = 9 7×9= 10 7 × 10 = 6 7 × 30 = 7 7 × 50 = Solve the following. 8 7 × 700 = 9 7 × 40 = 1 7000 ÷ 7 = 10 7 × 200 = 2 2100 ÷ 7 = 3 5600 ÷ 7 = 43 4 700 ÷ 7 = 5 4900 ÷ 7 = Multiplication Tables Grade 5_Maths.indb 43 07-11-2018 17:13:00
Practise table of 8 Fill in the blanks. Complete the table. 1 × 8 = 72 2 ×8= 8 1 8×1= 3 10 × 8 = 2 8×2= 4 × 8 = 48 3 8×3= 5 × 8 = 24 4 8×4= 6 × 8 = 64 5 8×5= 7 × 8 = 40 6 8×6= 8 4×8= 7 8×7= 9 7×8= 8 8×8= 10 2 × 8 = 9 8×9= 10 8 × 10 = 6 8 × 50 = 7 8 × 600 = Solve the following. 8 8 × 1000 = 9 8 × 900 = 1 8000 ÷ 8 = 10 8 × 400 = 2 5600 ÷ 8 = 3 720 ÷ 8 = 07-11-2018 17:13:00 4 6400 ÷ 8 = 5 240 ÷ 8 = 44 Grade 5_Maths.indb 44
Practise table of 9 Fill in the blanks. Complete the table. 1 × 9 = 54 2 × 9 = 36 1 9×1= 3 9×9= 2 9×2= 4 2×9= 3 9×3= 5 3×9= 4 9×4= 6 × 9 = 63 5 9×5= 7 8×9= 6 9×6= 8 10 × 9 = 7 9×7= 9 1×9= 8 9×8= 10 5 × 9 = 9 9×9= 10 9 × 10 = 6 9 × 600 = 7 9 × 700 = Solve the following. 8 9 × 30 = 9 9 × 900 = 1 3600 ÷ 9 = 10 9 × 1000 = 2 900 ÷ 9 = 3 810 ÷ 9 = 45 4 2700 ÷ 9 = 5 630 ÷ 9 = Multiplication Tables Grade 5_Maths.indb 45 07-11-2018 17:13:00
Practise table of 10 Fill in the blanks. Complete the table. 1 2 × 10 = 2 × 10 = 50 1 10 × 1 = 3 10 × 10 = 2 10 × 2 = 4 × 10 = 70 3 10 × 3 = 5 × 10 = 90 4 10 × 4 = 6 1 × 10 = 5 10 × 5 = 7 6 × 10 = 6 10 × 6 = 8 3 × 10 = 7 10 × 7 = 9 × 10 = 80 8 10 × 8 = 10 × 10 = 40 9 10 × 9 = 10 10 × 10 = 6 10 × 80 = 7 10 × 500 = Solve the following. 8 10 × 100 = 9 10 × 60 = 1 10000 ÷ 10 = 10 10 × 900 = 2 900 ÷ 10 = 3 500 ÷ 10 = 07-11-2018 17:13:00 4 3000 ÷ 10 = 5 2000 ÷ 10 = 46 Grade 5_Maths.indb 46
Practise table of 11 Fill in the blanks. Complete the table. 1 10 × 11 = 2 3 × 11 = 1 11 × 1 = 3 × 11 = 11 2 11 × 2 = 4 4 × 11 = 3 11 × 3 = 5 8 × 11 = 4 11 × 4 = 6 5 × 11 = 5 11 × 5 = 7 2 × 11 = 6 11 × 6 = 8 6 × 11 = 7 11 × 7 = 9 × 11 = 99 8 11 × 8 = 10 7 × 11 = 9 11 × 9 = 10 11 × 10 = 6 11 × 100 = 7 11 × 900 = Solve the following. 8 11 × 20 = 9 11 × 80 = 1 330 ÷ 11 = 10 11 × 70 = 2 4400 ÷ 11 = 3 220 ÷ 11 = 47 4 6600 ÷ 11 = 5 9900 ÷ 11 = Multiplication Tables Grade 5_Maths.indb 47 07-11-2018 17:13:01
Practise table of 12 Fill in the blanks. Complete the table. 1 4 × 12 = 2 7 × 12 = 1 12 × 1 = 3 3 × 12 = 2 12 × 2 = 4 10 × 12 = 3 12 × 3 = 5 × 12 = 60 4 12 × 4 = 6 × 12 = 12 5 12 × 5 = 7 8 × 12 = 6 12 × 6 = 8 × 12 = 24 7 12 × 7 = 9 9 × 12 = 8 12 × 8 = 10 6 × 12 = 9 12 × 9 = 10 12 × 10 = 6 12 × 200 = 7 12 × 90 = Solve the following. 8 12 × 300 = 9 12 × 60 = 1 2400 ÷ 12 = 10 12 × 500 = 2 1080 ÷ 12 = 3 360 ÷ 12 = 07-11-2018 17:13:01 4 840 ÷ 12 = 5 960 ÷ 12 = 48 Grade 5_Maths.indb 48
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