6.8×32+3×3.2.简便计算.
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6.8×32+3×3.2.简便计算.
= 6.8 x 32 + 0.3 x 32
= (6.8+0.3 ) x 32
= 7.1 x 32
= 227.2
======以下答案可供参考======
供参考答案1:
大约165000
供参考答案2:
6.8×32+3×3.2
=6.8×32+0.3×32
=(6.8+0.3)×32
=7.1×32
=(7+0.1)×32
=7×32+0.1×32
=224+3.2
=227.2
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