Addition W/O Regrouping
Addition W/ Regrouping
Number Patterns
Subtraction W/O Regrouping
Subtraction W/ Regrouping
100
18 + 21 =
39
100
18 + 5 =
23
100
18, 19, _, _, 22, 23, _, 25
20, 21, 24
100
27 - 6 =
21
100
23 - 6 =
17
200
20 + 7 =
27
200
24 + 9 =
33
200
__, __, 30, 31, __, 33, 34
28, 29, 32
200
29 - 23 =
3
200
24 - 8 =
16
300
53 + 44 =
97
300
5 + 26 =
31
300
30, 32, __, __, 38, __
34, 36, 40
300
31 - 20 =
11
300
36 - 9 =
27
400
66 + 33 =
99
400
16 + 7 =
23
400
27, __, 23, __, 19, 17, 15
25, 21
400
36 - 5 =
31
400
25 - 16 =
9
500
30 + 8 =
38
500
25 + 15 =
40
500
__, 10, __, 30, 40, __, 60
0, 20, 50
500
38 - 8 =
30
500
20 - 18 =
2
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