3.28乘32加6.4乘32.8的简便怎么算?
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简便运算
3.28×32+6.4×32.8
=3.28×32+6.4×(3.28×10)
=3.28×32+3.28×64
=3.28×(32+64)
=3.28×96
=3.28×(100-4)
=3.28×100-3.28×4
=328-13.12
=314.88
上面是详细点的,下面是跳步的简略版
3.28×32+6.4×32.8
=3.28×32+3.28×64
=3.28×(32+64)
=3.28×(100-4)
=3.28×100-3.28×4
=328-13.12
=314.88
3.28×32+6.4×32.8
=3.28×32+6.4×(3.28×10)
=3.28×32+3.28×64
=3.28×(32+64)
=3.28×96
=3.28×(100-4)
=3.28×100-3.28×4
=328-13.12
=314.88
上面是详细点的,下面是跳步的简略版
3.28×32+6.4×32.8
=3.28×32+3.28×64
=3.28×(32+64)
=3.28×(100-4)
=3.28×100-3.28×4
=328-13.12
=314.88
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