
4.06╳1.8+10.8÷0.25 好简便吗?
1个回答
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4.06×1.8+10.8÷0.25
(4+0.06)×1.8+(10.8×4)÷(0.25×4)
=4×1.8+0.06×1.8+43.2÷1
=7.2+0.108+43.2
=50.4+0.108
=50.508
(4+0.06)×1.8+(10.8×4)÷(0.25×4)
=4×1.8+0.06×1.8+43.2÷1
=7.2+0.108+43.2
=50.4+0.108
=50.508
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