题目内容

【题目】口算。

9 – 5 = 2 + 8 = 2 +6 =

5 + 3 = 7 + 3 = 4 +6 =

10 – 7 = 8 – 4 = 6 +3 =

4 +5 = 9 – 7 = 10 – 8 =

8 – 0 = 10 – 5 = 9 – 6 =

8 – 6 +5 = 10 – 3 – 4 = 5 +3 – 6 =

3 – 3 +6 = 7– 3 + 5 = 8 – 2 – 4 =

2 + =6 + = =

3 + =7 3 + =9 3 + =8

【答案】4108

81010

349

922

853

73, 2

692

43, 2, 56, 4, 2

465

【解析】

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