题目内容
竖式计算并且验算.
8.52+1.36=
6.89-1.37=
9-5.48=
873÷3=
8.52+1.36=
6.89-1.37=
9-5.48=
873÷3=
8.52+1.36=9.88

验算:

6.89-1.37=5.52

验算:

9-5.48=3.52

验算:

873÷3=291

验算:

验算:
6.89-1.37=5.52
验算:
9-5.48=3.52
验算:
873÷3=291
验算:
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