understanding division workbook preview

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3 3 3 rd rd rd Grades Grades Grades 2 2 2 nd nd nd Division Division Understanding Understanding

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Page 1: Understanding Division Workbook preview

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DivisionDivisionUndersta

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Page 2: Understanding Division Workbook preview

DivisionComplete.

1. Divide 12 cookies into groups of 3.

____ groups 12 ÷ 3 = ____

2. Divide 12 bells into groups of 2.

____ groups 12 ÷ 2 = ____

3. Divide 12 leaves into groups of 4.

____ groups 12 ÷ 4 = ____4. Divide 10 birds into groups of 5.

____ groups 10 ÷ 5 = ____

5. Divide 12 strawberries into groups of 2.

____ groups 12 ÷ 2 = ____

Name: ______________________________ Date: __________________

Page 3: Understanding Division Workbook preview

1. Divide 12 cookies into groups of 3.

4 groups 12 ÷ 3 = 42. Divide 12 bells into groups of 2.

6 groups 12 ÷ 2 = 63. Divide 12 leaves into groups of 4.

3 groups 12 ÷ 4 = 3

4. Divide 10 birds into groups of 5.

2 groups 10 ÷ 5 = 2

5. Divide 12 strawberries into groups of 2.

6 groups 12 ÷ 2 = 6

Page 4: Understanding Division Workbook preview

DivisionWrite a division fact for each picture.

1.

2.

3.

4.

5.

6.

7.

Name: ______________________________ Date: __________________

Page 5: Understanding Division Workbook preview

1.

10 ÷ 5 = 22.

12 ÷ 2 = 63.

12 ÷ 4 = 34.

12 ÷ 3 = 45.

10 ÷ 5 = 26.

12 ÷ 3 = 47.

12 ÷ 4 = 3

Page 6: Understanding Division Workbook preview

DivisionWrite a division fact for each picture.

1.

2.

3.

4.

5.

6.

7.

Name: ______________________________ Date: __________________

Page 7: Understanding Division Workbook preview

1.

42 ÷ 7 = 62.

36 ÷ 2 = 183.

27 ÷ 9 = 34.

30 ÷ 3 = 105.

30 ÷ 5 = 66.

24 ÷ 8 = 37.

44 ÷ 4 = 11

Page 8: Understanding Division Workbook preview

DivisionComplete.

1. Divide 44 raindrops into groups of 4.

____ groups 44 ÷ 4 = ____

2. Divide 24 baseballs into groups of 8.

____ groups 24 ÷ 8 = ____

3. Divide 30 ants into groups of 3.

____ groups 30 ÷ 3 = ____

4. Divide 36 dots into groups of 2.

____ groups 36 ÷ 2 = ____5. Divide 30 snowflakes into groups of 6.

____ groups 30 ÷ 6 = ____

6. Divide 30 ants into groups of 5.

____ groups 30 ÷ 5 = ____7. Divide 27 baseballs into groups of 9.

____ groups 27 ÷ 9 = ____

Name: ______________________________ Date: __________________

Page 9: Understanding Division Workbook preview

1. Divide 44 raindrops into groups of 4.

11 groups 44 ÷ 4 = 112. Divide 24 baseballs into groups of 8.

3 groups 24 ÷ 8 = 3

3. Divide 30 ants into groups of 3.

10 groups 30 ÷ 3 = 10

4. Divide 36 dots into groups of 2.

18 groups 36 ÷ 2 = 185. Divide 30 snowflakes into groups of 6.

5 groups 30 ÷ 6 = 56. Divide 30 ants into groups of 5.

6 groups 30 ÷ 5 = 6

7. Divide 27 baseballs into groups of 9.

3 groups 27 ÷ 9 = 3

Page 10: Understanding Division Workbook preview

Addition and Division with 2Fill in the missing numbers.

1.2 + 2 = ______

______ groups of the number ______ ______ ÷ 2 = 22.

2 + 2 + 2 + 2 + 2 + 2 + 2 = ______

______ groups of the number ______ ______ ÷ 2 = 7

3.2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = ______

______ groups of the number ______ ______ ÷ 2 = 9

4.2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = ______

______ groups of the number ______ 20 ÷ 2 = ______5.

2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = ______

______ groups of the number ______ ______ ÷ 2 = 86.

2 + 2 + 2 + 2 + 2 + 2 = ______

______ groups of the number ______ 12 ÷ ______ = 6

7.2 + 2 + 2 = ______

______ groups of the number ______ 6 ÷ ______ = 3

8.2 + 2 + 2 + 2 = ______

______ groups of the number ______ 8 ÷ 2 = ______9.

2 + 2 + 2 + 2 + 2 = ______

______ groups of the number ______ ______ ÷ 2 = 5

Name: ______________________________ Date: __________________

Page 11: Understanding Division Workbook preview

1. 2 + 2 = 4

2 groups of the number 2 4 ÷ 2 = 22. 2 + 2 + 2 + 2 + 2 + 2 + 2 = 14

7 groups of the number 2 14 ÷ 2 = 7

3. 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 18

9 groups of the number 2 18 ÷ 2 = 94. 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 20

10 groups of the number 2 20 ÷ 2 = 10

5. 2 + 2 + 2 + 2 + 2 + 2 + 2 + 2 = 16

8 groups of the number 2 16 ÷ 2 = 86. 2 + 2 + 2 + 2 + 2 + 2 = 12

6 groups of the number 2 12 ÷ 2 = 6

7. 2 + 2 + 2 = 6

3 groups of the number 2 6 ÷ 2 = 38. 2 + 2 + 2 + 2 = 8

4 groups of the number 2 8 ÷ 2 = 4

9. 2 + 2 + 2 + 2 + 2 = 10

5 groups of the number 2 10 ÷ 2 = 5

Page 12: Understanding Division Workbook preview

Addition and Division with 3Fill in the missing numbers.

1.3 + 3 = ______

______ groups of the number ______ ______ ÷ 3 = 22.

3 + 3 + 3 + 3 = ______

______ groups of the number ______ ______ ÷ 3 = 4

3.3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = ______

______ groups of the number ______ ______ ÷ 3 = 9

4.3 + 3 + 3 + 3 + 3 = ______

______ groups of the number ______ ______ ÷ 3 = 55.

3 + 3 + 3 = ______

______ groups of the number ______ 9 ÷ 3 = ______6.

3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = ______

______ groups of the number ______ 24 ÷ ______ = 8

7.3 + 3 + 3 + 3 + 3 + 3 = ______

______ groups of the number ______ 18 ÷ 3 = ______

8.3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = ______

______ groups of the number ______ 30 ÷ ______ = 109.

3 + 3 + 3 + 3 + 3 + 3 + 3 = ______

______ groups of the number ______ ______ ÷ 3 = 7

Name: ______________________________ Date: __________________

Page 13: Understanding Division Workbook preview

1. 3 + 3 = 6

2 groups of the number 3 6 ÷ 3 = 22. 3 + 3 + 3 + 3 = 12

4 groups of the number 3 12 ÷ 3 = 4

3. 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = 27

9 groups of the number 3 27 ÷ 3 = 94. 3 + 3 + 3 + 3 + 3 = 15

5 groups of the number 3 15 ÷ 3 = 5

5. 3 + 3 + 3 = 9

3 groups of the number 3 9 ÷ 3 = 36. 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = 24

8 groups of the number 3 24 ÷ 3 = 8

7. 3 + 3 + 3 + 3 + 3 + 3 = 18

6 groups of the number 3 18 ÷ 3 = 68. 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3 = 30

10 groups of the number 3 30 ÷ 3 = 10

9. 3 + 3 + 3 + 3 + 3 + 3 + 3 = 21

7 groups of the number 3 21 ÷ 3 = 7

Page 14: Understanding Division Workbook preview

Addition and Division with 4Fill in the missing numbers.

1.4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = ______

______ groups of the number ______ ______ ÷ 4 = 82.

4 + 4 + 4 + 4 + 4 + 4 = ______

______ groups of the number ______ ______ ÷ 4 = 6

3.4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = ______

______ groups of the number ______ ______ ÷ 4 = 10

4.4 + 4 + 4 + 4 + 4 + 4 + 4 = ______

______ groups of the number ______ 28 ÷ ______ = 75.

4 + 4 + 4 + 4 = ______

______ groups of the number ______ 16 ÷ 4 = ______6.

4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = ______

______ groups of the number ______ ______ ÷ 4 = 9

7.4 + 4 + 4 + 4 + 4 = ______

______ groups of the number ______ 20 ÷ ______ = 5

8.4 + 4 = ______

______ groups of the number ______ ______ ÷ 4 = 29.

4 + 4 + 4 = ______

______ groups of the number ______ 12 ÷ 4 = ______

Name: ______________________________ Date: __________________

Page 15: Understanding Division Workbook preview

1. 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 32

8 groups of the number 4 32 ÷ 4 = 82. 4 + 4 + 4 + 4 + 4 + 4 = 24

6 groups of the number 4 24 ÷ 4 = 6

3. 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 40

10 groups of the number 4 40 ÷ 4 = 104. 4 + 4 + 4 + 4 + 4 + 4 + 4 = 28

7 groups of the number 4 28 ÷ 4 = 7

5. 4 + 4 + 4 + 4 = 16

4 groups of the number 4 16 ÷ 4 = 46. 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 + 4 = 36

9 groups of the number 4 36 ÷ 4 = 9

7. 4 + 4 + 4 + 4 + 4 = 20

5 groups of the number 4 20 ÷ 4 = 58. 4 + 4 = 8

2 groups of the number 4 8 ÷ 4 = 2

9. 4 + 4 + 4 = 12

3 groups of the number 4 12 ÷ 4 = 3

Page 16: Understanding Division Workbook preview

Addition and Division with 5Fill in the missing numbers.

1.5 + 5 + 5 + 5 + 5 = ______

______ groups of the number ______ ______ ÷ 5 = 52.

5 + 5 + 5 + 5 = ______

______ groups of the number ______ ______ ÷ 5 = 4

3.5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = ______

______ groups of the number ______ ______ ÷ 5 = 9

4.5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = ______

______ groups of the number ______ 50 ÷ 5 = ______5.

5 + 5 + 5 = ______

______ groups of the number ______ 15 ÷ ______ = 36.

5 + 5 = ______

______ groups of the number ______ ______ ÷ 5 = 2

7.5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = ______

______ groups of the number ______ 40 ÷ ______ = 8

8.5 + 5 + 5 + 5 + 5 + 5 + 5 = ______

______ groups of the number ______ 35 ÷ 5 = ______9.

5 + 5 + 5 + 5 + 5 + 5 = ______

______ groups of the number ______ ______ ÷ 5 = 6

Name: ______________________________ Date: __________________

Page 17: Understanding Division Workbook preview

1. 5 + 5 + 5 + 5 + 5 = 25

5 groups of the number 5 25 ÷ 5 = 52. 5 + 5 + 5 + 5 = 20

4 groups of the number 5 20 ÷ 5 = 4

3. 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 45

9 groups of the number 5 45 ÷ 5 = 94. 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 50

10 groups of the number 5 50 ÷ 5 = 10

5. 5 + 5 + 5 = 15

3 groups of the number 5 15 ÷ 5 = 36. 5 + 5 = 10

2 groups of the number 5 10 ÷ 5 = 2

7. 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 40

8 groups of the number 5 40 ÷ 5 = 88. 5 + 5 + 5 + 5 + 5 + 5 + 5 = 35

7 groups of the number 5 35 ÷ 5 = 7

9. 5 + 5 + 5 + 5 + 5 + 5 = 30

6 groups of the number 5 30 ÷ 5 = 6

Page 18: Understanding Division Workbook preview

Addition and Division with 6Fill in the missing numbers.

1.6 + 6 + 6 = ______

______ groups of the number ______ ______ ÷ 6 = 32.

6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 = ______

______ groups of the number ______ ______ ÷ 6 = 8

3.6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 = ______

______ groups of the number ______ ______ ÷ 6 = 9

4.6 + 6 + 6 + 6 = ______

______ groups of the number ______ 24 ÷ ______ = 45.

6 + 6 + 6 + 6 + 6 + 6 + 6 = ______

______ groups of the number ______ 42 ÷ 6 = ______6.

6 + 6 = ______

______ groups of the number ______ ______ ÷ 6 = 2

7.6 + 6 + 6 + 6 + 6 = ______

______ groups of the number ______ 30 ÷ ______ = 5

8.6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 = ______

______ groups of the number ______ ______ ÷ 6 = 109.

6 + 6 + 6 + 6 + 6 + 6 = ______

______ groups of the number ______ 36 ÷ 6 = ______

Name: ______________________________ Date: __________________

Page 19: Understanding Division Workbook preview

1. 6 + 6 + 6 = 18

3 groups of the number 6 18 ÷ 6 = 32. 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 = 48

8 groups of the number 6 48 ÷ 6 = 8

3. 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 = 54

9 groups of the number 6 54 ÷ 6 = 94. 6 + 6 + 6 + 6 = 24

4 groups of the number 6 24 ÷ 6 = 4

5. 6 + 6 + 6 + 6 + 6 + 6 + 6 = 42

7 groups of the number 6 42 ÷ 6 = 76. 6 + 6 = 12

2 groups of the number 6 12 ÷ 6 = 2

7. 6 + 6 + 6 + 6 + 6 = 30

5 groups of the number 6 30 ÷ 6 = 58. 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 = 60

10 groups of the number 6 60 ÷ 6 = 10

9. 6 + 6 + 6 + 6 + 6 + 6 = 36

6 groups of the number 6 36 ÷ 6 = 6

Page 20: Understanding Division Workbook preview

Addition and Division with 7Fill in the missing numbers.

1.7 + 7 = ______

______ groups of the number ______ ______ ÷ 7 = 22.

7 + 7 + 7 + 7 + 7 + 7 + 7 = ______

______ groups of the number ______ ______ ÷ 7 = 7

3.7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = ______

______ groups of the number ______ ______ ÷ 7 = 9

4.7 + 7 + 7 = ______

______ groups of the number ______ 21 ÷ 7 = ______5.

7 + 7 + 7 + 7 + 7 = ______

______ groups of the number ______ 35 ÷ ______ = 56.

7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = ______

______ groups of the number ______ ______ ÷ 7 = 8

7.7 + 7 + 7 + 7 = ______

______ groups of the number ______ 28 ÷ 7 = ______

8.7 + 7 + 7 + 7 + 7 + 7 = ______

______ groups of the number ______ ______ ÷ 7 = 69.

7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = ______

______ groups of the number ______ 70 ÷ ______ = 10

Name: ______________________________ Date: __________________

Page 21: Understanding Division Workbook preview

1. 7 + 7 = 14

2 groups of the number 7 14 ÷ 7 = 22. 7 + 7 + 7 + 7 + 7 + 7 + 7 = 49

7 groups of the number 7 49 ÷ 7 = 7

3. 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = 63

9 groups of the number 7 63 ÷ 7 = 94. 7 + 7 + 7 = 21

3 groups of the number 7 21 ÷ 7 = 3

5. 7 + 7 + 7 + 7 + 7 = 35

5 groups of the number 7 35 ÷ 7 = 56. 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = 56

8 groups of the number 7 56 ÷ 7 = 8

7. 7 + 7 + 7 + 7 = 28

4 groups of the number 7 28 ÷ 7 = 48. 7 + 7 + 7 + 7 + 7 + 7 = 42

6 groups of the number 7 42 ÷ 7 = 6

9. 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = 70

10 groups of the number 7 70 ÷ 7 = 10

Page 22: Understanding Division Workbook preview

Addition and Division with 8Fill in the missing numbers.

1.8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = ______

______ groups of the number ______ ______ ÷ 8 = 92.

8 + 8 + 8 + 8 + 8 + 8 = ______

______ groups of the number ______ ______ ÷ 8 = 6

3.8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = ______

______ groups of the number ______ ______ ÷ 8 = 8

4.8 + 8 + 8 + 8 + 8 = ______

______ groups of the number ______ 40 ÷ ______ = 55.

8 + 8 + 8 + 8 + 8 + 8 + 8 = ______

______ groups of the number ______ 56 ÷ 8 = ______6.

8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = ______

______ groups of the number ______ ______ ÷ 8 = 10

7.8 + 8 + 8 = ______

______ groups of the number ______ ______ ÷ 8 = 3

8.8 + 8 = ______

______ groups of the number ______ 16 ÷ 8 = ______9.

8 + 8 + 8 + 8 = ______

______ groups of the number ______ 32 ÷ ______ = 4

Name: ______________________________ Date: __________________

Page 23: Understanding Division Workbook preview

1. 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = 72

9 groups of the number 8 72 ÷ 8 = 92. 8 + 8 + 8 + 8 + 8 + 8 = 48

6 groups of the number 8 48 ÷ 8 = 6

3. 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = 64

8 groups of the number 8 64 ÷ 8 = 84. 8 + 8 + 8 + 8 + 8 = 40

5 groups of the number 8 40 ÷ 8 = 5

5. 8 + 8 + 8 + 8 + 8 + 8 + 8 = 56

7 groups of the number 8 56 ÷ 8 = 76. 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 = 80

10 groups of the number 8 80 ÷ 8 = 10

7. 8 + 8 + 8 = 24

3 groups of the number 8 24 ÷ 8 = 38. 8 + 8 = 16

2 groups of the number 8 16 ÷ 8 = 2

9. 8 + 8 + 8 + 8 = 32

4 groups of the number 8 32 ÷ 8 = 4

Page 24: Understanding Division Workbook preview

Addition and Division with 9Fill in the missing numbers.

1.9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = ______

______ groups of the number ______ ______ ÷ 9 = 92.

9 + 9 + 9 + 9 + 9 + 9 + 9 = ______

______ groups of the number ______ ______ ÷ 9 = 7

3.9 + 9 + 9 = ______

______ groups of the number ______ ______ ÷ 9 = 3

4.9 + 9 + 9 + 9 = ______

______ groups of the number ______ ______ ÷ 9 = 45.

9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = ______

______ groups of the number ______ 72 ÷ ______ = 86.

9 + 9 + 9 + 9 + 9 = ______

______ groups of the number ______ 45 ÷ 9 = ______

7.9 + 9 = ______

______ groups of the number ______ ______ ÷ 9 = 2

8.9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = ______

______ groups of the number ______ 90 ÷ ______ = 109.

9 + 9 + 9 + 9 + 9 + 9 = ______

______ groups of the number ______ 54 ÷ 9 = ______

Name: ______________________________ Date: __________________

Page 25: Understanding Division Workbook preview

1. 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = 81

9 groups of the number 9 81 ÷ 9 = 92. 9 + 9 + 9 + 9 + 9 + 9 + 9 = 63

7 groups of the number 9 63 ÷ 9 = 7

3. 9 + 9 + 9 = 27

3 groups of the number 9 27 ÷ 9 = 34. 9 + 9 + 9 + 9 = 36

4 groups of the number 9 36 ÷ 9 = 4

5. 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = 72

8 groups of the number 9 72 ÷ 9 = 86. 9 + 9 + 9 + 9 + 9 = 45

5 groups of the number 9 45 ÷ 9 = 5

7. 9 + 9 = 18

2 groups of the number 9 18 ÷ 9 = 28. 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = 90

10 groups of the number 9 90 ÷ 9 = 10

9. 9 + 9 + 9 + 9 + 9 + 9 = 54

6 groups of the number 9 54 ÷ 9 = 6

Page 26: Understanding Division Workbook preview

Addition and Division with 10Fill in the missing numbers.

1.10 + 10 + 10 + 10 + 10 + 10 = ______

______ groups of the number ______ ______ ÷ 10 = 62.

10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 = ______

______ groups of the number ______ ______ ÷ 10 = 8

3.10 + 10 + 10 + 10 + 10 = ______

______ groups of the number ______ ______ ÷ 10 = 5

4.10 + 10 + 10 + 10 + 10 + 10 + 10 = ______

______ groups of the number ______ ______ ÷ 10 = 75.

10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 = ______

______ groups of the number ______ 90 ÷ ______ = 96.

10 + 10 + 10 + 10 = ______

______ groups of the number ______ 40 ÷ 10 = ______

7.10 + 10 + 10 = ______

______ groups of the number ______ ______ ÷ 10 = 3

8.10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 = ______

______ groups of the number ______ 100 ÷ ______ = 109.

10 + 10 = ______

______ groups of the number ______ 20 ÷ 10 = ______

Name: ______________________________ Date: __________________

Page 27: Understanding Division Workbook preview

1. 10 + 10 + 10 + 10 + 10 + 10 = 60

6 groups of the number 10 60 ÷ 10 = 62. 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 = 80

8 groups of the number 10 80 ÷ 10 = 8

3. 10 + 10 + 10 + 10 + 10 = 50

5 groups of the number 10 50 ÷ 10 = 54. 10 + 10 + 10 + 10 + 10 + 10 + 10 = 70

7 groups of the number 10 70 ÷ 10 = 7

5. 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 = 90

9 groups of the number 10 90 ÷ 10 = 96. 10 + 10 + 10 + 10 = 40

4 groups of the number 10 40 ÷ 10 = 4

7. 10 + 10 + 10 = 30

3 groups of the number 10 30 ÷ 10 = 38. 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 = 100

10 groups of the number 10 100 ÷ 10 = 10

9. 10 + 10 = 20

2 groups of the number 10 20 ÷ 10 = 2