85问答库 > 脱式计算（能简算的药简算） 12.5×0.4×2.5×8 0.87×6.6+8.

脱式计算（能简算的药简算） 12.5×0.4×2.5×8 0.87×6.6+8.

2024-12-02 18:02:21
推荐回答（1个）
回答1：

（1）12.5×0.4×2.5×8，
=（12.5×8）×（0.4×2.5），
=100×1，
=100；

（2）0.87×6.6+8.7×0.34，
=0.87×6.6+0.87×10×0.34，
=0.87×6.6+0.87×3.4，
=0.87×（6.6+3.4），
=0.87×10，
=8.7；

（3）9.07-22.78÷3.4，
=9.07-6.7，
=2.37．

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