问题 计算题
简便算法。
(1)2.37+5.91+0.63(2)18-1.52-0.48
(3)(8+0.4)×0.25(4)4.7×10.1
答案

(1)2.37+5.91+0.63

 =3+5.91

 =8.91(2)18-1.52-0.48

 =18-2

 =16

(3)(8+0.4)×0.25

 =2+0.1

 =2.1(4)4.7×10.1

 =47+0.47

 =47.47

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