Show:
Adding ten
Regrouping
Smaller 2-digit Numbers
Counting by tens
Regrouping 2
100

22 + 10 =

What is 32

100

15 + 17 =

What is 32

100

50 + 12 =

What is 62

100

Ten after 35

What is 45

100

36 + 44 =

What is 80

200

45 + 10 =

What is 55

200

28 + 43 =

What is 71

200

74 + 22 =

What is 96

200

Ten after 66 

What is 76

200

52 + 29 =

What is 81

300

77 + 10 =

What is 87

300

64 + 29 =

What is 93
300

33 + 25 = 

What is 58

300

Ten after 21

What is 31

300

49 + 17 =

What is 66

400

89 + 10 = 

What is 99

400

71 + 19 = 

What is 90

400

78 + 21 = 

What is 99

400

Ten after 88

What is 98

400

27 + 36 =

What is 63

500

105 + 10 =

What is 115

500

87 + 24 = 

What is 111

500

100 + 15 = 

What is 115

500

Ten after 125 

What is 135

500

59 + 43 =

What is 102