怎样算简便就怎样算．2.33×0.5×4 44.2 - 知识问答

怎样算简便就怎样算．2.33×0.5×4 44.28÷0.9÷4.1 0.65×201 1.08×0.8÷0.27 9.

1个回答

①2.33×0.5×4
=2.33×（0.5×4）
=2.33×2
=4.66；
②44.28÷0.9÷4.1
=49.2÷4.1
=12；
③0.65×201
=0.65×（200+1）
=130+0.65；
=130.65；
④1.08×0.8÷0.27
=0.864÷0.27
=3.2；
⑤9.07-22.78÷3.4
=9.07-6.7
=2.37；
⑥1.2×2.5+0.8×2.5
=2.5×（1.2+0.8）
=2.5×2
=5．

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