一、脱式计算。(能简便的要简便) (0.2+6.37÷0.7)×0.5
一、脱式计算。(能简便的要简便)
(0.2+6.37÷0.7)×0.5 5.7×2.9+4.3×2.9 1.6×1.25×2.5
10.1×4.8
(0.2+6.37÷0.7)×0.5
=0.2×0.5+6.37÷0.7×0.5
=0.1+9.1×0.5
=0.1+4.55
=4.65
5.7×2.9+4.3×2.9
=（5.7+4.3） ×2.9
=10×2.9
=29
1.6×1.25×2.5
=2×2.5
=5
10.1×4.8
=（10+0.1）×4.8
=10×4.8+0.1×4.8
=48+0.48
=48.48
=0.2×0.5+6.37÷0.7×0.5
=0.1+9.1×0.5
=0.1+4.55
=4.65
5.7×2.9+4.3×2.9
=（5.7+4.3） ×2.9
=10×2.9
=29
1.6×1.25×2.5
=2×2.5
=5
10.1×4.8
=（10+0.1）×4.8
=10×4.8+0.1×4.8
=48+0.48
=48.48
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第1个回答 2015-11-06
1.
（0.2+6.37÷0.7）×0.5
=(0.2+9.1)×0.5
=9.3×0.5
=4.65追答
（0.2+6.37÷0.7）×0.5
=(0.2+9.1)×0.5
=9.3×0.5
=4.65追答
2.
5.7×2.9+4.3×2.9
=(5.7+4.3)×2.9
=10×2.9
=29
第2个回答 推荐于2016-12-02
第3个回答 2015-11-06
亲，先把我列入满意答案，再告诉你怎么做？追答
😁
第4个回答 2015-11-06
是分开的三道吗追问
是
追答额，你已经采纳了😂
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