Show:
Make 10
Number Bonds
Make 20
Number Bonds
Find the
Missing Addends
Find the
Missing Subtrahends
100

7 + 13 = 

Spit 13 into 10 and 3
7 + 3  = 10
10 + 10 = 20

100

13 + 27 = 

Split 27 into 7 and 20
13 + 7 = 20
20 + 20 = 40

100
23 + ____ = 39

16

100

42 - ____ = 22

20

200

2 + 15 = 

Split 15 into 8 and 7
2 + 8 = 10
10 + 7 = 17

200

15 + 38 = 

Split 38 into 5 and 33
15 + 5 = 20
20 + 33 = 53

200

47 + _____ = 81

34

200

_____ - 50 = 6

56

300

24 + 16 = 

Split 16 into 6 and 10
24 + 6 = 30
30 + 10 = 40

300

33 + 49 = 

Split 49 into 7 and 42
33 + 7 = 40
40 + 42 = 82

300

248 + ____ = 320

72

300

142 - ____ = 105

37

400

68 + 32 =

Split 32 into 2 and 30
68 + 2 = 70
70 + 30 = 100

400

58 + 39 = 

Split 39 into 2 and 37
58 + 2 = 60
60 + 37 = 97

400

132 + _____ = 235

103

400

______ - 375 = 125

500

500

45 + 59 =

Split 59 into 5 and 54
45 + 5 = 50
50 + 54 = 104

500

76 + 21

Split 21 into 4 and 17
76 + 4 = 80
80 + 17 = 97

500

512 + _____ = 1,212

700

500

_____ - 312 = 415

727