Show:
Addition
Subtraction
Addition with Regrouping
Subtraction with Regrouping
Mystery
100
10 +10 _____
What is 20
100
96 - 3 ______
What is 93
100
23 +19 ____
42
100
92 - 56 _____
36
100
56 +13 _____
69
200
12 +13 ____
What is 25
200
65 - 42 ______
What is 23
200
85 +75 _____
160
200
82 - 36 _____
46
200
91 - 6 _____
85
300
36 +22 _____
What is 58
300
69 - 10 ______
59
300
56 + 26 ______
82
300
82 - 3 _____
79
400
63 +12 _____
What is 75
400
97 - 53 ______
44
400
99 +44 ____
143
400
97 - 89 _____
8
400
92 +18 _____
110
500
83 +10 _____
What is 93
500
84 - 51 _____
33
500
68 + 25 _____
93
500
71 - 58 _____
13
500
19 + 91 ____
110