Adding
Subtracting
Do I make a new ten?
True or False?
Do I need to regroup?
100

25 + 31 = 

56

100

77 - 40 =

37

100

75 + 8 = 

Yes...83

100

73 + 12 = 85

True

100

66 - 52 =

No...14

200

77 + 8 =

85

200

88 - 8 =

80

200

27 + 12 =

No...39

200

87 + 3 = 91

False...90

200

72 - 6 =

Yes...66

300

27 + 27 =

54

300

75 - 17 =

58

300

58 + 38 =

Yes...96

300

62 + 33 = 105

False...95

300

88 - 14 =

No...74

400

73 + 9 = 

82

400

91 - 19 =

72

400

12 + 81 =

No..93

400

58 - 12 = 46

True

400

23 - 17 =

Yes...6

500

12 + 88 =

100

500

27 - 19 =

8

500

50 + 50 =

No...100
500

66 - 18 = 46

False...48

500

100 - 25 =

Yes...75

M
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