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32.5×2.9 3.45脱式计算.

32.5X2.9+3.45 =32.5X2.9+3.25+0.2 =32.5X(2.9+0.1)+0.2 =32.5X3+0.2 =97.5+0.2 =97.7

=45.6x(32.5+63.8+1) =45.6x97.3 =4436.88

0.25×32×12.5 =0.25×(4×8)×12.5 =(0.25×4)×(8×12.5) =1×100 =100

3.25剩47加5.3剩32.5 =3.25x47+3.25x53 =3.25x(47+53) =3.25x100 =325 请采纳正确答案,你们只提问,不采纳正确答案,回答都没有劲!谢谢管理员推荐采纳!! 朋友,请【采纳答案】,您的采纳是我答题的动力,如果没有明白,请追问。谢谢。

这就是答案

4.32×0.45 =4.32×5×0.09 =21.6×0.09 =1.944

(1)32-1.8×5-3.46,=32-9-3.46,=23-3.46,=19.54;(2)3.6÷〔(1.3+0.6)×5〕,=3.6÷〔1.9×5〕,=3.6÷9.5,=3695;(3)32.34÷0.l×0.5,=323.4×0.5,=161.7.

1.21×32-5.4+7/50 =38.72-5.4+0.14 =33.32+0.14 =33.46

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