3.61*9.9+36.1用简便方法怎么算
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3.61*9.9+36.1
=3.61*(10-0.1)+36.1
=36.1-0.361+36.1
=72.2-0.361
=71.839
=3.61*(10-0.1)+36.1
=36.1-0.361+36.1
=72.2-0.361
=71.839
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3.61×9.9+36.1
=3.61×9.9 + 3.61×10
=3.61×19.9
=3.61×(20-0.1)
=72.2-0.361
=71.839
=3.61×9.9 + 3.61×10
=3.61×19.9
=3.61×(20-0.1)
=72.2-0.361
=71.839
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3.61*10-3.61*0.1+36.1
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解:原式=3.61×(10-0.1)+3.61×10
=3.61×(10-0.1+10)
=3.61×(20-0.1)
=3.61×20-3.61×0.1
=72.2-0.361
=71.839
=3.61×(10-0.1+10)
=3.61×(20-0.1)
=3.61×20-3.61×0.1
=72.2-0.361
=71.839
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解:
3.61*9.9+3.61
=3.61*(10-0.1)+36.1
=3.61*10-3.61*0.1+36.1
=36.1-0.361+36.1
=72.2-0.361
=71.839
用计算机, :)
3.61*9.9+3.61
=3.61*(10-0.1)+36.1
=3.61*10-3.61*0.1+36.1
=36.1-0.361+36.1
=72.2-0.361
=71.839
用计算机, :)
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