2.84×7.9+2.84×2+28.4×0.01的简便计算？
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2.84×7.9+2.84×2+28.4×0.01
=2.84×7.9+2.84×2+2.84×0.1
=2.84×(7.9+2+0.1)
=2.84×10
=28.4
这道题运用了乘法分配率
=2.84×7.9+2.84×2+2.84×0.1
=2.84×(7.9+2+0.1)
=2.84×10
=28.4
这道题运用了乘法分配率
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2.84*7.9+2.84*2+28.4*0.01
=2.84*（7.9+2+0.1）
=2.84*10
=28.4
=2.84*（7.9+2+0.1）
=2.84*10
=28.4
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2.84*7.9+2.84*2+28.4*0.01
=2.84*7.9+2.84*2+2.84*10*0.01
=2.84*7.9+2.84*2+2.84*0.1
=2.84*(7.9+2+0.1)
=2.84*10
=28.4
=2.84*7.9+2.84*2+2.84*10*0.01
=2.84*7.9+2.84*2+2.84*0.1
=2.84*(7.9+2+0.1)
=2.84*10
=28.4
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展开全部
2.84×7.9+2.84×2+28.4×0.01
=2.84×7.9+2.84×2+2.84×0.1
=2.84×(7.9+2+0.1)
=2.84×10
=28.4
=2.84×7.9+2.84×2+2.84×0.1
=2.84×(7.9+2+0.1)
=2.84×10
=28.4
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你对这个回答的评价是？
展开全部
2.84×7.9+2.84×2+28.4×0.01
=2.84×7.9+2.84×2+2.84×0.1
=2.84×(7.9+2+0.1)
=2.84×10
=28.4
=2.84×7.9+2.84×2+2.84×0.1
=2.84×(7.9+2+0.1)
=2.84×10
=28.4
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评论
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你对这个回答的评价是？
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