37-21=850÷100=====12×5=4.4×1.1===36÷3=3-2.55===210×10===0.95=________%???????????9.

发布时间:2020-08-12 02:44:16

37-21=850÷100=====12×5=4.4×1.1===36÷3=3-2.55===210×10===0.95=________%???????????9.5-8.7==0÷=1.12=________%??????????0.6+0.13==2×==________%????????0.4×0.9====________%????????2.4÷0.3==×24=75%=1.2-1.16==9÷8=15%=.

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解析分析:根据整数、分数、小数和百分数加减乘除的计算方法进行计算.

解答:37-21=16,850÷100=8.5,=,=,=,=,12×5=60,4.4×1.1=4.84,=,=,36÷3=12,3-2.55=0.45,=,=6,210×10=2100,=1,=,0.95=95%,9.5-8.7=0.8,=,0÷=0,1.12=112%,0.6+0.13=0.73,=,2×=,=40%,0.4×0.9=0.36,=,=,=22%,2.4÷0.3=8,=,×24=17,75%=,1.2-1.16=0.04,=,9÷8=,15%=.

点评:口算时,注意运算符号和数据,然后再进一步计算.
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