Workbook Detail
Subtraction Within 100 Easy — Set 38
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}Teaching Notes
2
-1
3
-2
3
-1
69
-63
59
-47
89
-28
39
-33
99
-32
36
-4
31
-21
65
-34
15
-3
7
-4
15
-13
28
-18
65
-31
90
-70
51
-1
78
-64
85
-73
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