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4.6×1.8×0.5怎样简便计算?

4.6×1.8×0.5 =1.8×0.5×4.6 =0.9×4.6 =4.14

4.6×0.19+0.5×1.9简便运算方法如何计算 =4.6x0.19+5x0.19 =(4.6+5)x0.19 =9.6x(0.2-0.01) =9.6x0.2-9.6x0.01 =1.92-0.096 =1824

(4.6+12.8)x0.5 =4.6÷2+12.8÷2 =2.3+6.4 =8.7 如果对您有帮助; 请采纳答案,谢谢。

1.5-0.9=0.6

都是1位小数,取整计算,然后再除以10还原即可 (46-28*5)/10=

0.2×1.8×0.5×10 =(0.2×0.5)×(1.8×10) =0.1×18 =1.8

“4/5×1.8-0.8×80% 可以简便计算吗?可以的话写出过程” 解:原式=4/5*1.8-0.8*4/5 =4/5*(1.8-0.8) =4/5*1 =4/5 “天天以每分钟步行60米的速度从家到姥姥家,需要12分钟。如果天天的步行速度提高20%,那么从家到姥姥家需要多少分钟?(写过程和...

2.5×0.8-1.8×0.5 =5×0.8×0.5-1.8×0.5 =4×0.5-1.8×0.5 =(4-1.8)×0.5 =2.2×0.5 =1.1×2×0.5 =1.1×1 =1.1

0.074*1.8*20.5 =0.074*(1.8*20.5) =0.074*36.9 =2.7306

1800×0.5×3.6 =1800×0.5×2x1.8 =1800x1x1.8 =1800x1.8 =3240 希望帮到你 望采纳 谢谢 加油~

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