题目内容
【题目】计算下面各题,你认为怎样简便就怎样算。
(0.56+3.2)÷0.8
13.6×101-13.6
3.2×0.25×12.5
【答案】4.7;1360;10
【解析】
(0.56+3.2)÷0.8
=3.76÷0.8
=4.7
13.6×101-13.6
=13.6×(101-1)
=13.6×100
=1360
3.2×0.25×12.5
=(4×0.25)×(0.8×12.5)
=1×10
=10
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题目内容
【题目】计算下面各题,你认为怎样简便就怎样算。
(0.56+3.2)÷0.8
13.6×101-13.6
3.2×0.25×12.5
【答案】4.7;1360;10
【解析】
(0.56+3.2)÷0.8
=3.76÷0.8
=4.7
13.6×101-13.6
=13.6×(101-1)
=13.6×100
=1360
3.2×0.25×12.5
=(4×0.25)×(0.8×12.5)
=1×10
=10