
13.2*7.8-3.2*0.78怎么简算?
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题目有误?如是:
13.2×7.8-32×0.78 则
=13.2×7.8-3.2×7.8
=(13.2-3.2)×7.8
=10×7.8
=78
如题目无误,则
=13.2×7.8-0.32×7.8
=(13.2-0.2)×7.8-0.12×7.8
=10×7.8+3×7.8-0.1×7.8-0.02×7.8
=78+23.4-0.78-0.156
=101.4-0.936
=100.464 还不如 直接计算
13.2×7.8-32×0.78 则
=13.2×7.8-3.2×7.8
=(13.2-3.2)×7.8
=10×7.8
=78
如题目无误,则
=13.2×7.8-0.32×7.8
=(13.2-0.2)×7.8-0.12×7.8
=10×7.8+3×7.8-0.1×7.8-0.02×7.8
=78+23.4-0.78-0.156
=101.4-0.936
=100.464 还不如 直接计算
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13.2*7.8-3.2*0.78
=132*0.78-3.2*0.78
=(132-3.2)*0.78
=128.8×0.78
=132*0.78-3.2*0.78
=(132-3.2)*0.78
=128.8×0.78
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简便计算:(13.2-3.2)*0.78就行了吧啊啊啊啊
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13.2*7.8-3.2*0.78
=132*0.78-3.2*0.78
=(132-3.2)*0.78
=128.8×0.78
=100.464
=132*0.78-3.2*0.78
=(132-3.2)*0.78
=128.8×0.78
=100.464
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13.2*7.8-3.2*0.78简算
=13.2*7.8-0.32*7.8
=(13.2-0.32)*7.8
=12.88*7.8
=100.464
=13.2*7.8-0.32*7.8
=(13.2-0.32)*7.8
=12.88*7.8
=100.464
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