Practice below base (1000 to 10000) 1. 9999 x 9999 2. 998 x 995 3. 999 x 997 4. 9999 x 9998 5 9989 x 9989 6 996 x 994 7 9994 x 9996 8 9998 x 9991 9 994 x998 10 991 x 999 11 990 x 992 12 9999 x 8999 Above the base 10 1. 12 x 15 2. 13 x 17 3. 14 x 15 4. 15 x 16 - 51 - | P a g e
5 11 x 15 6 12 x 16 7 13 x 14 8 14 x 17 Above the base 20 1. 22 x 25 2. 23 x 22 3. 25 x 25 4. 25 x 24 5 21 x 24 6 25 x 23 7 24 x 22 8 23 x 25 Above the base 30 1. 35 x 32 2. 34 x 33 3. 33 x 31 - 52 - | P a g e
4. 32 x 34 5 33 x 35 6 37 x 33 7 31 x 35 8 36 x 32 Above the base 40 1. 45 x 46 2. 44 x 42 3. 42 x 41 4. 42 x 45 5 47 x 42 6 42 x 46 7 44 x 45 8 43 x 41 Above the base 50 1. 51 x 55 2. 52 x 53 - 53 - | P a g e
3. 53 x 54 4. 54 x 52 5 55 x 56 6 54 x 55 7 52 x 51 8 53 x 56 Above the base 60 1. 65 x 61 2. 64 x 62 3. 63 x 63 4. 62 x 65 5 64 x 65 6 63 x 66 7 61 x 61 8 62 x 62 Above the base 70 1. 72 x 71 - 54 - | P a g e
2. 73 x 72 3. 74 x 73 4. 74 x 74 5 75 x 74 6 71 x 75 7 72 x 72 8 73 x 71 Above the base 80 1. 81 x 82 2. 84 x 87 3. 85 x 82 4. 84 x 82 5 82 x 83 6 85 x 83 7 82 x 86 8 84 x 84 - 55 - | P a g e
Above the base 90 1. 91 x 92 2. 92 x 94 3. 92 x 92 4. 91 x 95 5 92 x 93 6 91 x 91 7 91 x 94 8 93 x 93 Practice Sheet Above the Base Method 1. 11 x 16 2. 31 x 36 3. 51 x 55 4. 71 x 75 5 12 x 13 6 32 x 35 7 52 x 53 8 72 x 74 9 13 x 15 - 56 - | P a g e
10 33 x 34 11 53 x 54 12 73 x 72 13 25 x 21 14 41 x 45 15 65 x 61 16 82 x 84 17 24 x 22 18 42 x 44 19 64 x 62 20 81 x 83 21 94 x 96 22 34 x 32 23 74 x 75 24 94 x 95 25 51 x 52 - 57 - | P a g e
Above the base 100 1. 101 x 102 2. 105 x 106 3. 104 x 108 4. 117 x 102 5 125 x 105 6 172 x 101 7 136 x 103 8 112 x 112 Above the base 200 1. 230 x 209 2. 216 x 207 3. 213 x 202 4. 207 x 214 5 207 x 207 6 205 x 206 7 211 x 206 8 208 x 205 - 58 - | P a g e
Above the base 300 1. 332 x 301 2. 305 x 305 3. 368 x 301 4. 332 x 304 5 306 x 314 6 313 x 306 7 323 x 309 8 318 x 307 Above the base 400 1. 401 x 409 2. 408 x 409 3. 404 x 408 4. 413 x 401 5 403 x 406 6 405 x 408 7 413 x 406 - 59 - | P a g e
8 409 x 409 Above the base 500 1. 516 x 501 2. 507 x 503 3. 522 x 501 4. 513 x 502 5 532 x 503 6 521 x 504 7 504 x 516 8 513 x 513 Above the base 600 1. 601 x 608 2. 612 x 602 3. 604 x 616 4. 651 x 602 5 625 x 603 6 623 x 601 - 60 - | P a g e
7 609 x 611 8 609 x 609 Above the base 700 1. 706 x 706 2. 722 x 705 3. 717 x 702 4. 703 x 704 5 735 x 707 6 712 x 706 7 718 x 711 8 723 x 708 Above the base 800 1. 801 x 809 2. 823 x 806 3. 834 x 805 4. 842 x 801 5 811 x 808 - 61 - | P a g e
6 803 x 804 7 827 x 807 8 838 x 809 Above the base 900 1. 901 x 902 2. 905 x 905 3. 901 x 907 4. 904 x 905 5 903 x 904 6 906 x 907 7 911 x 905 8 907 x 905 Practice Sheet Above the base Method 1. 102 x 103 2. 202 x 207 3. 423 x 402 4. 701 x 705 - 62 - | P a g e
5 107 x 109 6 303 x 303 7 504 x 507 8 717 x 706 9 702 x 704 10 112 x 105 11 118 x 102 12. 521 x 502 13 702 x 704 14 230 x 202 15 904 x 907 16 503 x 506 17 825 x 804 18 301 x 309 19 156 x 101 20 621 x 608 21 813 x 803 22 123 x 104 23 986 x 901 - 63 - | P a g e
24 617 x 603 25 832 x 806 Practice Sheet Above 1000 and 10000 1. 1003 x 1006 2. 1652 x 1001 3. 108 x 105 4. 1004 x 1111 5 1001 x 1002 6 1005 x 1189 7 1006 x 1004 8 1237 x 1001 9 1006 x 1008 10 1645 x 1010 11 1009 x 1002 12 10006 x 10005 13 1012 x 1011 14 10032 x 10006 15 1112 x 1001 - 64 - | P a g e
16 1002 x 1210 17 1123 x 1004 18 10005 x 10015 19 10005 x 10076 20 10021 x 10004 TEST (MULTIPLICATION) 1. 79 X 9 2. 38 X 19 3. 47 X 29 4. 56 X 39 5 146 X 49 6 43 X 59 7 83 X 69 8 28 X 79 9 34 X 22 10 67 X 33 11 102 X 44 12 324 X 55 - 65 - | P a g e
13 291 X 111 14 183 X 111 15 241 X 111 16 9085 X 111 17 184 X 555 18 603 X 666 19 815 X 777 20 1980 X 888 21 16 X 17 22 18 X 17 23 22 X 22 24 53 X 49 25 49 X 48 26 105 X 115 27 106 X 104 28 1009 X 1005 29 499 X 496 30 1500 X 1040 31 1004 X 1004 - 66 - | P a g e
32 395 X 396 33 918 X 999 34 150 X 140 35 1044 X 1002 36 1070 X 1010 37 9996 X 9994 38 990 X 994 39 10002 X 10100 40 1050 X 1005 41 1008 X 1006 42 110032 X 110002 43 999993 X 999999 44 10065 X 10005 45 9998 X 9998 LESSON – 11 – SUBTRACTION – ALL FROM 9 LAST FROM 10 Apply the Compliments 738 3091 - 67 - | P a g e
526 86723 4012 56801 9822 90903 4567 78234 3467 234901 20987 45938 256198 23765 400912 239867 Subtract the following 1 1000 – 481 2 1000– 309 3 1000 – 892 4 1000 – 976 5 100 – 78 6 100 - 33 - 68 - | P a g e
7 10000 – 8877 8 10000 – 9876 9 1000 – 808 10 1000 – 710 11 10000 - 6300 Add a Zero 1 1000 – 86 2 1000– 35 3 10000 – 353 4 10000 – 62 5 1000 – 8 6 1000 – 93 - 69 - | P a g e
7 10000 – 177 8 10000 – 85 9 10000 - 3 10 1000 – 78 11 10000 - 54 Subtract the following 1 600 – 88 2 800 – 45 3 900 – 73 4 50000 – 5443 5 70000 – 7123 6 400 – 83 - 70 - | P a g e
7 2000 – 439 8 6000 – 672 9 90000 – 6736 10 30000 – 4782 11 80000 - 3457 Subtract the following 1 8000 – 3034 2 3000 – 2666 3 9000 – 5482 4 700 – 567 5 5000 – 3124 6 800 – 213 - 71 - | P a g e
7 300 – 194 8 5000 - 1756 9 9000 – 6677 10 40000 – 23418 11 7000 - 3562 PRACTICE SHEET – SUBTRACTION – All from 9 last from 10 1 5000 – 74 2 100 – 34 3 5000 – 542 4 1000 – 33 5 700 – 58 - 72 - | P a g e
6 10000 – 4321 7 30000 – 276 8 1000 – 474 9 800 – 22 10 5000 – 84 11 9000 – 286 12 200 – 94 13 10000 – 358 14 7000 – 88 15 30000 – 63 16 50000 – 44 17 400 – 81 - 73 - | P a g e
18 900 – 17 19 90000 – 899 20 30000 - 670 LESSON 12 – VINICULUM Change each unit digit into viniculum 1 39 2 49 3 29 4 19 5 58 6 78 7 59 - 74 - | P a g e
8 48 9 27 10 38 11 79 12 98 Viniculum all digits except the first one 1 287 2 376 3 487 4 598 5 699 6 2786 - 75 - | P a g e
7 38677 8 4758 9 3908 10 58799 11 38897 12 98339 Devinculate – one digit 1 4���̅��� 2 3���̅��� 3 7���̅��� 4 5���̅��� - 76 - | P a g e
5 2���̅��� 6 73̅ 7 6���̅��� 8 2���̅��� 9 9���̅��� 10 8���̅��� 11 23���̅��� 12 64���̅��� Devinculate 1 2���̅̅���̅���̅��� 2 6���̅̅���̅���̅��� 3 42̅̅̅1̅ - 77 - | P a g e
4 74̅̅̅2̅ 5 83̅̅̅4̅ 6 61̅̅̅3̅ 7 50̅̅̅1̅ 8 43̅̅̅2̅ 9 57̅̅̅8̅ 10 33̅̅̅3̅ 11 63̅12̅ 12 52̅23̅ Subtract the following 4231 1 −2787 - 78 - | P a g e
������������������ 2 −������������������ 5126 3 2842 − 4 5 6 7 8 9 10 11 12 - 79 - | P a g e
- 80 - | P a g e
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