15.8×0.12÷7.9+3.8的简便方法?
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15.8×0.12÷7.9+3.8
=158/10×12/100×10/79+38/10
=158×12/79×100+38/10
=24/100+38/10
=2.4/10+38/10
=40.4/10
=4.04
=158/10×12/100×10/79+38/10
=158×12/79×100+38/10
=24/100+38/10
=2.4/10+38/10
=40.4/10
=4.04
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15.8×0.12÷7.9+3.8
=15.8÷7.9+0.12+3.8
=2×0.12+3.8
=0.24+3.8
=4.04
=15.8÷7.9+0.12+3.8
=2×0.12+3.8
=0.24+3.8
=4.04
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展开全部
15.8×0.12÷7.9+3.8
=158/10×12/100×10/79+38/10
=158×12×10/10×100×79+38/10
=24/100+380/100
=404/100
=4.04
=158/10×12/100×10/79+38/10
=158×12×10/10×100×79+38/10
=24/100+380/100
=404/100
=4.04
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展开全部
15.8*0.12/7.9+3.8
=15.8/7.9*0.12+3.8
=2*0.12+3.8
=0.24+3.8
=4.04
=15.8/7.9*0.12+3.8
=2*0.12+3.8
=0.24+3.8
=4.04
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15.8*0.12/7.9+3.8,
=0.24+3.8,
=4.04。
=0.24+3.8,
=4.04。
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