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7.2÷1.6×0.5的简便算法

7.2÷1.6+0.4用简便方法计算 7.2÷1.6+0.4 =0.4×(18÷4+1) =0.4×5.5 =2.4 希望能够帮的上你,望采纳。

7.73×0.5+2.27×0.5

1. (0.2+6.37÷0.7)×0.5 =(0.2+9.1)×0.5 =9.3×0.5 =4.65

这个英文乘以0.5和除以二是同一个意思,所以呢,也可以合并同类项吗?所以呢最后的结果就是13.7-3.7的差,乘以0.5,最后那等于10×0.5等于5

7.9÷0.5÷2用简便方法计算 7.9÷0.5÷2 =7.9÷(0.5*2) =7.9÷1 =7.9

3.7×0.5+6.3÷2 =3.7x0.5+6.3x0.5 =(3.7+6.3)x0.5 =10x0.5 =5

12.7×6/5-7.2÷(5/6)简算 =12.7x6/5+7.2x6/5 =(12.7+7.2)x6/5 =(20-0.1)x6/5 =20x6/5-0.1x6/5 =24-1/10x6/5 =24-3/25 =23又22/25

(1)2.9+0.46+7.1+0.54,=(2.9+7.1)+(0.46+0.56),=10+1,=11;(2)30÷2.5+1.6×2.5,=12+4,=16;(3)0.4×(25+2.5),=25×0.4+2.5×0.4,=10+1,=11;(4)4.97×[2.46÷(5.58-5.28)],=4.97×[2.46÷0.3],=4.97×8.2,=40.754.

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

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