96×1.8 3乘以五分之九加0.1×18怎么简便算?
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原式=1.8*(96+3+0.1)
=1.8*99.1
=1.8*(100-0.9)
=1.8*100-1.8*0.9
=180-1.62
=178.38
=1.8*99.1
=1.8*(100-0.9)
=1.8*100-1.8*0.9
=180-1.62
=178.38
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96×1.83×9/5+0.1×18
=96×1.83×1.8+1.8
=(96×1.83+1)×1.8
=(100×1.83-4×1.83+1)×1.8
=(183-7.32+1)×1.8
=(183-6.32)×1.8
=176.68×(2-0.2)
=353.36-35.336
=328.024
=96×1.83×1.8+1.8
=(96×1.83+1)×1.8
=(100×1.83-4×1.83+1)×1.8
=(183-7.32+1)×1.8
=(183-6.32)×1.8
=176.68×(2-0.2)
=353.36-35.336
=328.024
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