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一年級數學科

Chinese 12 Public

求算式中缺去的數(加法)

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? + 8 = 16

8

10

? + 9 = 17

8

10

? + 5 = 12

7

10

? + 7 = 14

7

10

? + 6 = 15

9

10

? + 5 = 13

8

10

7 + ? = 12

5

10

5 + ? = 13

8

10

3 + ? = 12

9

10

6 + ? = 11

5

10

6 + ? = 12

6

10

? + 8 = 17

9

10