Add with no regrouping
Add with regrouping
Surprise!
Subtraction with no regrouping
Subtraction with regrouping
100
22+44
What is 66
100
84+56
What is 140
100
82+12
What is 94
100
99-66
What is 33
100
85-16
What is 69
200
43+23
What is 66
200
12+89
What is 101
200
65-37
What is 28
200
45-14
What is 31
200
45-17
What is 28
300
12+84
What is 96
300
45+69
What is 114
300
95-13
What is 82
300
15-11
What is 4
300
81-62
What is 19
400
15+74
What is 89
400
84+67
What is 151
400
100+15
What is 115
400
74-33
What is 41
400
15-9
What is 6
500
41+36
What is 77
500
58+62
What is 120
500
74+29
What is 103
500
42-20
What is 22
500
100-56
What is 44
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