
十二点五乘六十六点四加三十七点五乘十一点二的简便运算怎么?
2个回答
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简便运算如下:
12.5×66.4+37.5×11.2
=12.5×66.4+12.5×3×11.2
=12.5×66.4+12.5×33.6
=12.5×(66.4+33.6)
=12.5×100
=1250
12.5×66.4+37.5×11.2
=12.5×66.4+12.5×3×11.2
=12.5×66.4+12.5×33.6
=12.5×(66.4+33.6)
=12.5×100
=1250
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