懸賞一百金幣,急
22.2×6.1+66.6×1.3,,怎么用簡便計算
計算機最快了啦~
22.2*6.1+66.6*1.3
=22.2*6.1+22.2*3.9
=22.2*(6.1+3.9)
=22.2*10
=222
22.2×6.1+66.6×1.3
=22.2×6.1+22.2×(3×1.3)
=22.2×6.1+22.2×3.9
=22.2×(6.1+3.9)
=22.2×10
=222
獎金太少了
Tags:金幣
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