Unit 11

Breaking apart +

100

Which ones shows how to add

23+8

A) 23 + 7 + 1

B) 23 + 7 + 3

C) 23 + 8 + 1

A) 23 + 7 + 1

200

Which ones shows how to add

49 + 12

A) 49 + 1 + 13

B) 49 + 1 + 11

C) 49 + 10 + 2

B) 49 + 1 + 11

300

Which ones shows how to add

6 + 6

A) 6 + 6 + 1

B) 6 + 10 + 2

C) 6 + 4 + 2

C) 6 + 4 + 2

400

Which ones shows how to add

58 + 23

A) 58 + 20 + 4

B) 58 + 2 + 21

C) 58 + 2 + 23

C) 58 + 2 + 23

500

Which ones shows how to add

81 + 39

A) 81 + 30 + 6

B) 81 + 9 + 30

C) 81 + 10 + 30

B) 81 + 9 + 30

tens and ones

100

How do you break apart 21?

20 + 1

200

How do you break apart 48?

40 + 8

300

How do you break apart 21 + 32?

20 + 1

30 + 2

400

How do you break apart 55 + 43

50 + 5

40 + 3

500

How do you break apart 72 + 89

70 + 2

80 + 9

Addition

100

Solve 

8 + 9 = __

17

200

Solve 

23 + 15 = __

38

300

Solve 

34 + 16 = __

50

400

Solve 

54 + 9 = __

63

500

Solve 

67 + 23 = __

90

Subtraction

100

Solve 

 13 - 5 = __

8

200

Solve 

 34 - 14 = __

20

300

Solve 

 57 - 9 = __

48

400

Solve 

 95 - 15 = __

80

500

Solve 

 76 - 28 = __

48

Breaking apart -

100

Which ones shows how to subtract

12 - 8

A) 12 - 2 - 6

B) 12 - 8 - 2

C) 12 - 6 - 3

A) 12 - 2 - 6

200

Which ones shows how to subtract

24 - 14

A) 24 - 14 - 10

B) 24 - 4 - 9

C) 24 - 4 - 10

C) 24 - 4 - 10

300

Which ones shows how to subtract

76 - 18

A) 76 - 6 - 12

B) 76 - 10 - 15

C) 76 - 12 - 8

A) 76 - 6 - 12

400

Which ones shows how to subtract

72 - 23

A) 72 - 20 - 4

B)72 - 2 - 21

C) 72 - 3 - 21

B)72 - 2 - 21

500

Which ones shows how to subtract

76 - 38

A) 76 - 6 - 20

B) 76 - 8 - 40

C) 76 - 8 - 30

C) 76 - 8 - 30