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三点7×0点125 6点三除以八简便计算

23点4除以七点2 +6点5×0点八的简便算法 23点4除以七点2 +6点5×0点八 =23.4÷7.2+6.5*0.8 =3.25+5.2 =8.45 直接计算

6.9×0.125×1.75÷(2.3×1/8×1/4) =6.9×0.125×1.75÷2.3×8×4 =(6.9÷2.3)×(0.125×8)×(1.75×4) =3×1×7 =21

=125÷125X8X8 =1X8X8 =64

23点4除以七点2 +6点5×0点八的简便算法 23点4除以七点2 +6点5×0点八 =23.4÷7.2+6.5*0.8 =3.25+5.2 =8.45 直接计算

因题干条件不完整,缺少文字,不能正常作答

3.8÷12.5÷0.8 =3.8÷(12.5×0.8) =3.8÷10 =0.38

3.04x31.2/1.98/31.2x1.98 =3.04x31.2x1.98/1.98/31.2 =3.04x31.2/31.2 =3.04 得到的结果为3.04

不能

8.1÷(0.5×0.3) =8.1÷0.3÷0.5 =27÷0.5 =54

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