1.用竖式计算。
5.7+3.8= 7.2−3.6= 12.82+2.08=
33.4−5.02= 54+8.6= 50−2.88=
25.25+25.25= 32.06−2.92= 18.7+2.59=
5.7+3.8= 7.2−3.6= 12.82+2.08=
33.4−5.02= 54+8.6= 50−2.88=
25.25+25.25= 32.06−2.92= 18.7+2.59=
答案:


2.判断下面竖式是否正确,正确的在括号内画“√”,错误的画“×”,并改错。

答案:
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