Question

0.54×280+72×5.4简便计算？

Answer 1

0.54×280+72×5.4
=0.54×10×28+72×5.4
=5.4×28+72×5.4
=5.4×（28+72）
=5.4×100
=540

Answer 2

0.54×280＋72×5.4
=(0.54×10)×(280÷10)＋72×5.4
=5.4×28＋72×5.4
=5.4×(28+72)
=5.4×100
=540

Answer 3

0.54×280+72×5.4
=5.4×28+72×5.4
=5.4×（28+72）
=5.4×100
=540

Answer 4

0.54×280+72×5.4
=5.4×28+72×5.4
=5.4×(28+72)
=5.4×100
=540

Answer 5

0.54*280+72*5.4
=5.4*28+72*5.4
=5.4*（28+72）
=5.4*100
=540
求采纳