Grade 2 Student Edition

Place Value in Three-Digit Numbers We write the number name for a three-digit number by naming the hundreds first. Then we name the tens and ones together.For example, the number name for 542 is five hundred forty-two.Write the number shown by the models. Then write the number name. 1. 2.Hundreds Tens Ones Hundreds Tens Ones Number:205Number: Number name:Number name: 4.two hundred five3. Hundreds Tens Ones Hundreds Tens OnesNumber: Number: 189Number name: Number name:Chapter 6 Lesson 4 2.NBT.1

Write the number shown by the models. Then write the number name. 1. 2. Hundreds Tens Ones Hundreds Tens OnesNumber: Number:Number name: Number name:3. 4. Hundreds Tens Ones Hundreds Tens OnesNumber: Number:Number name: Number name:Make a simple math drawing to show the number.5. 125 6. 325190

Practice: Place Value in Three-Digit Numbers 123 213 321The 1 in 123 is in the The 1 in 213 is in the The 1 in 321 is in the hundreds place. tens place. ones place. The value of the 1 The value of the The value of the is one hundred. 1 is ten. 1 is one.Circle the number that shows how many:hundreds tens ones1. 264 6. 523 11. 7242. 457 7. 946 12. 8213. 829 8. 186 13. 6374. 530 9. 342 14. 2495. 618 10. 270 15. 364Circle the value of the digit that is underlined.16. 427 17. 506 18. 368 19. 635 two five eight six twenty fifty eighty sixty two hundred five hundred eight hundred six hundred20. 807 21. 518 22. 290 23. 110seven one nine oneseventy ten ninety tenseven hundred one hundred nine hundred one hundredChapter 6 Lesson 5 2.NBT.6 191

Write how many. 2. 674 1. 529Hundreds Tens Ones Hundreds Tens Ones3. 490 4. 807Hundreds Tens Ones Hundreds Tens OnesCircle the correct number. 6. 5. 234 243 342 235 325 3527. 8. 405 504 540 341 413 431192

Reading and Writing Three-Digit NumbersCircle the correct number name. Then write the number using digits. 1. 2. four hundred twenty-six two hundred thirty-five four hundred sixty-two three hundred twenty-five six hundred twenty-four three hundred fifty-two The number is The number is3. 4.one hundred thirty-four two hundred sixthree hundred fourteen two hundred sixteenthree hundred forty-one two hundred sixty The number is The number isWrite the number using digits. 6. five hundred seventy-four Number: 5. eight hundred nine Number: 8. nine hundred eighty Number: 7. six hundred twelve CCSS2.MD.7 193 Number:Chapter 6 Lesson 6

Circle the correct number name. 2. 9151. 521 nine hundred five nine hundred fifteen one hundred twenty-five nine hundred fifty five hundred twelve five hundred twenty-one3. 607 4. 548six hundred seven five hundred forty-eightsix hundred seventeen five hundred eighty-foursix hundred seventy eight hundred forty-fiveWrite the number name for each number.5. 189 6. 8117. 8. 508 420LET’S WRITE!What is the job of the 0 in the number 106?194

Expanded FormTo write three-digit numbers in expanded form,we write the hundreds plus the tens plus the ones. The expanded form of 358 is 300 + 50 + 8.Write the number in expanded form. 1. 2. 263 = + + 415 = + +3. 4. 532 = ++ 328 = + +Chapter 6 Lesson 7 CCSS2.NBT.3 195

Write True or False. 2.1. 579 = 500 + 90 + 7236 = 200 + 30 + 6 4.3. 817 = 800 + 10 + 7495 = 500 + 90 + 4 6.5. 132 = 100 + 20 + 3720 = 700 + 20 8.7. 603 = 600 + 3941 = 900 + 10 + 4 10.Complete the expanded form. 806 = 800 +9. + 12. 628 = 600 + = 700 + 40 + 111. + 80 + 14. 483 = 655 = + +13. + 519 = 500 +Write the number in expanded form.15. 16. 254 = 493 =17. 18. 838 = 702 =19. 20. 660 = 317 =196

Comparing NumbersTo compare three-digit numbers, first compare the hundreds.If the hundreds are the same, compare the tens.If the tens are the same, compare the ones.If all three digits are the same, the numbers are equal.279 > 258 258 < 279 279 is greater than 258. 258 is less than 279.Write how much. Compare. Write >, <, or =. 1.2. Circle the correct word. 4. greater than 426 3. greater than 705 479 is l e ss than 932627 is le ss than equal to 197 equal to 6. greater than 5. greater than 822 937 is l eeq ssuathl aton822 is lee qssuathl aton CCSS2.NBT.4 Chapter 6 Lesson 8

Compare. Write >, <, or =.1. 2. 3. 712 372 264 753 847 6824. 5. 6. 287 296 387 375 426 4327. 8. 9. 632 632 936 932 827 846Write the value of each group of coins. Compare. Write >, <, or =.10. ¢¢11. ¢¢Write two ways to compare the numbers. 195 19112. 729 732 13.is greater than . is greater than . is less than . is less than .198

Greatest and LeastCircle the number that is the greatest in each set.1. 268 2. 347 3. 425 4. 692257 251 432 688262 340 427 5955. 546 6. 730 7. 299 8. 966 535 713 302 963 543 731 295 968Circle the number that is the least in each set.9. 467 10. 238 11. 809 12. 645 756458 149 814 752460 135 821 16. 233 12913. 397 14. 586 15. 671 236 403 583 682 392 590 676Chapter 6 Lesson 9 CCSS2.NTB.4 199

Fill in the correct symbol (>, <, or =). Write the number sentence in words.1. 264 2. 437 372 548372 is greater than 2643. 724 4. 542 618 5365. 792 6. 827 784 842Fill in the numbers to make the number sentence true.7. 465 269 8. 348 532 9. 617 725 904 >< >10. 375 357 11. 849 853 12. 940 >< <Write a number to make each number sentence true.13. 14. 15. 684 > > 354 < 473LET’S WRITE!How do you decide which of three numbers is the greatest?200

Counting to 1,000 by OnesWhen we count to 1,000, the digits in the ones place and in the tens placerepeat themselves. Only the digits in the hundreds place change. 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 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 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 86 87 88 89 90 91 92 93 94 95 96 97 98 99 1001. Fill in the missing numbers.2. In the chart below, color in all the numbers that have 0 tens.101 102 103 105 106 107 108 109 110111 112 113 114 115 116 117 118 119 120121 122 124 125 126 127 128 129 130131 132 133 134 135 137 138 139 140141 142 143 144 145 146 147 148 150151 152 153 154 155 156 157 159 160161 162 163 164 166 167 168 169 170171 172 173 174 175 176 178 179 180181 183 184 185 186 187 188 189 190192 193 194 195 196 197 198 199 200Chapter 6 Lesson 10 CCSS2.NBT.2 201

1. Fill in the missing numbers.2. In the chart below, color all numbers that have 0 ones.501 502 504 505 506 507 508 509 510 512 513 514 515 516 518 519 520521 522 523 524 525 526 527 528 530531 532 533 534 535 536 537 538 539 540541 542 543 545 546 547 548 549 550 552 553 554 555 556 557 558 559 560561 562 563 564 565 566 567 568 569571 572 573 574 575 576 577 579 580581 582 583 584 586 587 588 589 590591 592 593 594 595 596 597 598 6003. Fill in the missing numbers on the number line. 527 529 5344. Circle the point that shows 549. 560 C 570 540 A 550 BWrite the numbers that come just before and just after. 5. 6. 7. 572 539 520202

Practice: Counting to 1,0001. Fill in the missing numbers.2. In the chart below, color all numbers that have 5 ones.901 902 903 905 906 907 908 909 910911 912 913 914 915 916 918 919 920921 923 924 925 926 927 928 929931 932 933 934 935 936 937 938 940941 942 944 945 946 947 948 949 950951 952 953 954 955 956 957 958 960961 962 963 964 965 966 967 968 969 970972 973 974 975 976 977 978 979 980981 982 983 984 986 987 988 989 990991 992 993 994 995 996 997 999 1,0003. Fill in the missing numbers on the number line. 927 931 9344. Circle the point that shows 940.919 A 929 939 B C 949Write the numbers that come just before and just after. 5. 6. 7. 969 959 920Chapter 6 Lesson 11 2.NBT.2 203

Fill in the missing numbers on the number line. 1.373 375 3782. 674 681 672 3. 415 408 411 280 C 2904. Circle the point that shows 287.260 A 270 B5. Circle the point that shows 523.500 A 510 B 520 C 5306. Circle the point that shows 739.730 A B 740 C 750 760Write the numbers that come just before and just after. 279 7. 8. 9. 450 737204

Complete the table. Counting to the Next Hundred1. 481 482 483 485 486 487 488 489 490491 492 493 495 496 497 498 4992. 671 672 673 674 675 676 677 678 679 680 681 685 686 687 688 689 690 691 692 693 694 695 696 697 698 6993. 967 968 969 970 961 962 963 964 965971 972 973 974 975 977 978 979 980981 982 983 984 985 986 987 988 989 990991 992 993 994 995 996 997 998 l,000Fill in the missing numbers on the number line.4. 592 597 6005. 791 794 7976. 97 101 94 205Chapter 6 Lesson 12 2.NBT.2

Fill in the missing numbers on the number line.1. 692 694 6972. 396 502 3943. 301 305 297 C 4134. Circle the point that shows 400.383 A 393 B 4035. Circle the point that shows 801.794 A 804 B 814 C 8246. Circle the point that shows 596.587 A B 597 C 607 617Write the numbers that come just before and just after. 300 7. 8. 9. 899 599206

Skip-Count by 100sCount by hundreds. Write how many. 1. 2.Chapter 6 Lesson 13 2.NBT.2 207

Count by hundreds. Fill in the numbers.1. 336, 436, 536, 636 , 736 , 8362. 247, 347, 447, , ,3. 159, 259, 359, , ,4. 472, 572, 672, , ,5. 93, 193, 293, , ,Count by hundreds. Fill in the numbers. 600 800 725 6. 981 300 C7. 425 225 9538. 681 481Circle the point that shows 467. 9. 367 A 567 B 767Circle the point that shows 653.10. 353 A 553 B 753 C 208

100 More, 100 Less100 less than 314 is 214. 100 more than 314 is 414. 314 – 100 = 214 314 + 100 = 414Draw to show 100 more. Write the number that is 100 more. 534Complete the number sentence. +100 1. 634100 more than 534 is 634 . 132 +100 2.100 more than 132 is . 3. 458 +1 0 0100 more than 458 is .Chapter 6 Lesson 14 2.NBT.2 209

Cross off to show 100 less. Write the number that is 100 less. 315Complete the number sentence. –100 1.100 less than 315 is . 2. 243100 less than 243 is . –100 3. 516 –100100 less than 516 is .Write the number that is 100 more. 6. 488, 4. 5. , 264 772, 557, 13. 7 9 2Write the number that is 100 less. –1007. 8. 9. ,882 , 659Add or subtract.10. 6 7 5 11. 5 8 9 12. 8 4 3 +100 –100 +100210

Skip-Count by TensCount by tens. Write how many. 2. 1.Chapter 6 Lesson 15 2.NBT.2 211

Count by tens. Fill in the numbers.1. 618, 628, 638, 648 , 658 , 6682. 583, 593, 603, , ,3. 704, 714, 724, , ,4. 366, 376, 386, , ,5. 862, 872, 882, , ,Count by tens. Fill in the number line. 270 290 579 6. 2407. 549 5298. 885 895 865Circle the point that shows 482. 9. 432 A 452 B 472 C 492Circle the point that shows 526.10. 516 A 536 B 556 C 576 212

10 More, 10 Less 10 less than 245 is 235. 10 more than 245 is 255. 245 – 10 = 235 245 + 10 = 255Draw to show 10 more. Write the number that is 10 more. 324Complete the number sentence. + 10 1. 334 10 more than 324 is 334 . 162 2. + 10 10 more than 162 is .3. 458 + 10 10 more than 458 is .Chapter 6 Lesson 16 2.NBT.8 213

Cross off to show 10 less. Write the number that is 10 less. 341Complete the number sentence. – 101. 10 less than 341 is .2. 4 2 2 – 10 10 less than 422 is .3. 252 – 10 10 less than 252 is .Write the number that is 10 more.4. 584, 5. 106, 6. 735,Write the number that is 10 less.7. , 924 8. , 783 9. , 618Add or subtract.10. 4 3 7 11. 1 9 5 12. 7 6 0 13. 9 5 4 + 10 – 10 + 10 – 10214

1. Count by fives. Complete the table. Skip-Count by Fives l05 l l0Count by fives. Fill in the numbers. 2. 235, 240, 245, 250 , 255 , 2603. 415, 420, 425, , ,4. 205, 210, 215, , ,5. 65, 70, 75, , ,6. 675, 680, 685, , ,Chapter 6 Lesson 17 2.NBT.2 215

Count by fives. Fill in the number line. 350 360 1. 520 710 335 C 3452. 505 4953. 695 6854. Circle the point that shows 325. 315 320 A 330 B5. Circle the point that shows 675. 645 A 655 660 B 670 C6. Circle the point that shows 900.885 A 895 B 905 C 915Let’s Review! +6Fill in the number line. Add. 38 7. 38 + 6 = 216

Counting a Collection of CoinsWrite the amount of money. 1. ¢ ¢¢¢ ¢¢ In all2. ¢ ¢ ¢ ¢ ¢ ¢ ¢ In all3. ¢ ¢ ¢ ¢ In all4. ¢ ¢ ¢ ¢ In all5. ¢ ¢ ¢ ¢ ¢ In all6. ¢ ¢ ¢ ¢ ¢ ¢ 217 In allChapter 6 Lesson 18 2.NBT.2

Write the amount of money. Circle the Pif there is enough money tobuy the item. Circle the Oif there is not enough. 1. ¢ ¢ 55¢ ¢ ¢ PO ¢ 2. 60¢ PO 3. 80¢ PO 4. 85¢ PO 5. 79¢ P OWrite the value of each set of coins.Which set of coins has the greater value? Use <, >, or =. 6. ¢¢7.218 ¢ ¢

Making Equal Collections of CoinsWrite the amount of money.Show the amount in a different way.1. q d dd n ¢2. ¢3. ¢4. ¢5. ¢ 219Chapter 6 Lesson 19 2.NBT.2

Show the amount in two ways. One Way Another Way1. q 50¢2. q 75¢3. q 65¢4. q 80¢5. q 85¢220

End-of-Chapter ReviewWrite the number shown by the models. 1. 2. Hundreds Tens Ones Hundreds Tens OnesNumber: Number:Number name: Number name:Write the number in expanded form.3. 4. +397 = + + 806 = 7.Compare. Write >, <, or =. 5435. 6. 829 546 632 704 831 3938. Fill in the missing numbers on the number line.384 388Write the numbers that come just before and just after.9. 10. 11. , 519, , 499, , 710,Chapter 6 Lesson 20 221

Count by hundreds. Fill in the numbers.1. 171, 271, 371, , ,2. 485, 585, 685, , ,Write the number that is 100 less and the number that is 100 more.3. 4. 5. , 728, , 193, , 802,Count by tens. Fill in the numbers.6. 809, 819, 829, , ,7. 268, 278, 288, , ,Write the number that is 10 less and the number that is 10 more.8. 9. 10. , 180, , 352, , 699,Count by fives. Fill in the numbers.11. 735, 740, 745, , ,12 . 585, 590, 595, , ,Write the amount of money. Show the amount in a different way.13. ¢222

Complete the number line. Fill in the sum. Cumulative Review1. 48 + 40 = + 40 482. 48 + 42 = +42 40 483. 48 + 43 = +43 40 48Reorder and add to find the sum.4. 34 + 35 + 26 Reorder: + ++Do we have to regroup? Circle the correct sign.Subtract. Remember to start with the ones.5. 6. 7. 8. P 82 P 69 P 92 P 87 O –2 3 O –2 5 O –4 7 O –5 6Chapter 56 Lesson 1218 End-of-Chapter Review 223

Circle to show in which tens the difference will be. 90Complete the number line. Write the difference. –51. 9 0 – 4 = 70s 80s 90s 83Complete the number line. Write the difference.2. 8 3 –5Write the time. 4. 5.3.:: :minutes after minutes after minutes afterDraw the hands to show the time. 8.6. 7. 11:45 6:30 9:05224

7Xxx CHAPTER XxxAddition and Subtractionwith Three-Digit Numbers H TOVOCABULARY 9 8 4 9 Sum – 8 13 Difference 5 Regrouping 5 08 H TO 0 – 1104 0 6 0 3 4 2 Hundreds Tens Ones 2+ 2 5 Hundreds Tens Ones 5 6 7 Hundreds Tens OnesChapter 2 Lesson CCSS1.0A.1 Xxx. 1



Addition with Three-Digit NumbXexrxsWe can use models to help us add. H T OJack has 253 marbles in his collection.Jane has 142 marbles in her collection. How many marbles do 3 9 5 they have in all? 253 + 142 = 395Add. 1. Hundreds Tens Ones Tens Ones + Hundreds Hundreds Tens Ones 2. Hundreds Tens OnesChapter 7 Lesson 1 2.NBT.1.a Tens Ones + Hundreds Hundreds Tens Ones 227

Add. Hundreds Tens Ones 1. Tens Ones + 2. Hundreds 3. Hundreds Tens Ones 4. 228 Hundreds Tens Ones Tens Ones + Hundreds Hundreds Tens Ones Hundreds Tens Ones Tens Ones + Hundreds Hundreds Tens Ones Hundreds Tens Ones Tens Ones + Hundreds Hundreds Tens Ones

Draw more to add. Write the sum. Drawing to Add1. H T O H TO 351 TO +1 3 7 4882. H T O H 235 +2 1 43. H T O H T O 304+ 344. H T O H T O 426+1 2 3Chapter 7 Lesson 2 2.NBT.1 229

Make a simple math drawing to add. Write the sum.1. H T O HT O 432 +2 4 32. H T O HTO 250 +2 1 6Add. 4. H T O 5. H T O3. H T O 657 589 +3 4 2 +4 1 0 341 +2 0 5Let’s Review! Add. 8. 9.6. 7. 52 68 +29 +27 l 37 +26 46 +38 84230

3-Digit Addition: Regrouping Ones H TO 1. Add the ones. When the ones form 1 a new ten, fill in the 328 new ten. +1 4 7 2. A dd the tens (including the new ten). 475 3. A dd the hundreds.Circle the ones that form a new ten. Draw the new ten. Add.1. H T O 143 +72. H T O 328 + 34Chapter 7 Lesson 3 2.NBT.7 3-Digit Addition; Regrouping Ones 231

Circle the ones that form a new ten. Draw the new ten. Add.1. H T O 225 +82. H T O 139 +1 4 5Add. Regroup if necessary.3. H T O 4. H TO 5. H T O 146 237 558+ 38 +2 0 3 +4 3 7Make a simple drawing to help you add. Solve. 6. Zach has 217 marbles in a jar. He gets another 104 marbles. How many marbles does Zach have now? H TO + Zach has marbles.232

Adding Tens: Sums Above 100When the sum has 10 or more tens, regroup 10 tens as 1 hundred.70 + 50 l hundreds H TO 7 tens l+ 5 tens 70 + 50 l 2 tens = 12 0 2 tens 0 onesFill in the blanks to solve. Circle the tens that form a new hundred. Drawthe new hundred. Use the box to fill in the new hundred. Write the sum.1. 90 + 30 H TO tens 90+ tens + 30 tens = hundreds tens ones2. 70 + 60 H TO tens 70+ tens + 60 tens = hundreds tens onesChapter 7 Lesson 4 2.NBT.1 233

Fill in the blanks to solve. Circle the tens that form a new hundred. Drawthe new hundred. Use the box to fill in the new hundred. Write the sum.1. 80 + 80 H TO tens 80 + tens + 80 tens = hundreds tens ones2. 60 + 80 H TO tens 60 + tens + 80 tens = hundreds tens ones3. 90 + 70 H TO tens + tens 90 + 70 tens = hundreds tens onesAdd. Regroup if necessary. H TO 6. H T O4. H T O 5. 60 + 60 90 80 + 80 + 70234

3-Digit Addition: Regrouping Tens H TO 1. Add the ones. 2. A dd the tens. When l the tens form a new 28 0 hundred, fill in the+ 60 new hundred. 3. A dd the hundreds 34 0 (including the new hundred).Circle the tens that form a new hundred. Draw the new hundred. Add. 1. H T O 36 0 + 40 2. H T O 48 5 +3 7 0Chapter 7 Lesson 5 2.NBT.6 235

Circle the tens that form a new hundred. Draw the new hundred. Add.1. H T O 262 +1 5 42. H T O 374 +2 5 1Add. Regroup if necessary.3. H T O 4. H TO 5. H T O 272 352 583+1 6 4 +2 5 5 +3 5 5Make a simple drawing to help you add. Solve. 6. Rachel has read 180 pages. There are another 50 pages in her book. How many pages does Rachel’s book have in all? H TO + Rachel’s book has pages.236

3-Digit Addition: Regrouping Tens and Ones H TO 1. Add the ones. When the ones form a new ten, fill ll in the new ten. 257 2. A dd the tens When the+1 6 4 tens form a new hundred, fill in the new hundred. 421 3. A dd the hundreds (including the new hundred).Circle the ones that form a new ten. Draw the new ten. Circle the tensthat form a new hundred. Draw the new hundred. Add.1. H TO 37 6 +2 3 7 2. 237 H TO 28 5 +1 5 5Chapter 7 Lesson 6 2.NBT.7

Circle the ones that form a new ten. Draw the new ten.Circle the tens that form a new hundred. Draw the new hundred. Add.1. H T O 17 7 +1 4 62. H T O 48 6 +1 6 43. H T O 35 9 +2 5 3Add. Regroup if necessary. H TO 6. H T O4. H T O 5. 49 5 54 8 67 3 +2 8 7+3 9 8 +1 4 9