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一根电线长1.2米,截去20%后,再截去0.2米,还剩多少米?
人气:427 ℃ 时间:2020-04-02 17:59:07
解答
1.2×(1-20%)-0.2,
=1.2×0.8-0.2,
=0.96-0.2,
=0.76(米);
答:还剩下0.76米.
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