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2 ．用竖式计算，带 △ 的要验算。29 X

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2 ．用竖式计算，带 △ 的要验算。

29 X 53 =

37 X 51 =

25 X 36 =

441÷7 =

△ 612÷3 =

△ 820÷4 =

参考答案:

2 ．1537

1887

900

63

204

205

验算略

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