题目内容

【题目】计算下面各题,能简算的要简算.

0.78÷0.25×4

0.25×12.5×3.2

2.05÷0.82+4.17

【答案】(10.78÷0.25×4

=3.12×4

=12.48

20.25×12.5×3.2

=0.25×12.5×4×0.8

=0.25×4×12.5×0.8

=1×10

=10

32.05÷0.82+4.17

=2.5+4.17

=6.67

【解析】解:(10.78÷0.25×4

=3.12×4

=12.48

20.25×12.5×3.2

=0.25×12.5×4×0.8

=0.25×4×12.5×0.8

=1×10

=10

32.05÷0.82+4.17

=2.5+4.17

=6.67

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