展开全部
4.6×20.1
=4.6×(20+0.1)
=4.6×20+4.6×0.1
=92+0.46
=92.46
=4.6×(20+0.1)
=4.6×20+4.6×0.1
=92+0.46
=92.46
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展开全部
4.6×20.1=(5-0.4)*(20+0.1)
=5*20+5*0.1-0.4*20-0.4*0.1
=100+0.5-8-0.04
=92+0.46
=92.46
=5*20+5*0.1-0.4*20-0.4*0.1
=100+0.5-8-0.04
=92+0.46
=92.46
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