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用简便方法计算.
(41.7+19.6+23.85)+(10.4+26.15)
0.125×32×2.5.
人气:362 ℃ 时间:2019-09-23 14:03:12
解答
(41.7+19.6+23.85)+(10.4+26.15)
=(19.6+10.4)+(23.85+26.15)+41.7
=30+50+41.7
=121.7;
0.125×32×2.5
=(0.125×8)×(4×2.5)
=1×10
=10.
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