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Sarah's add/sub 9's

additiong and subtraction- summer 3rd grade

QuestionAnswer
9 + ? = 17 8
16 - 7 = 9
6 + ? = 15 9
18 - 8 = 10
8 + 9 = 17
6 + 7 = 13
8 + 7 = 15
9 + 4 = 13
7 + 9 = 16
9 + 9 = 18
9 + 6 = 15
9 + 7 = 16
8 + 5 = 13
9 + 8 = 17
5 + 7 = 12
6 + 8 = 14
15 - 9 = 6
18 - 9 = 9
13 - 5 = 8
17 - 8 = 9
16 - 9 = 7
15 - 9 = 6
13 - 9 = 4
Created by: smartee
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