如题所述
你好,这道题的简便算法如下:
0.12×50+1.2×5
=0.12×50+0.12×50
=0.12×(50+50)
=0.12×100
=12
望采纳。
0.12×50+1.2×5
=0.12×50+0.12×50
=0.12×(50+50)
=0.12×100
=12
望采纳。
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第1个回答 2020-06-28
0.12×50+1.2×5
=1.2×5+1.2×5
=1.2×(5+5)
=1.2×10
=12
=1.2×5+1.2×5
=1.2×(5+5)
=1.2×10
=12
第2个回答 2020-06-28
0.12X50+1.2X5
=5X1.2X(0.1X10+1)
=6X2
=12
=5X1.2X(0.1X10+1)
=6X2
=12