17.48×(-37)+8.74×(-88)-174×1.9怎么简算?
人气:463 ℃ 时间:2019-10-25 16:06:03
解答
17.48×(-37)+8.74×(-88)-1748×1.9
=17.48×(-37)+17.48×(-44)-17.48×19
=17.48×(-37-44-19)
=17.48×(-100)
=-1748
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