0.4x2.3x3.8简便计算
0.4x2.3x3.8的简便运算 -
0.4x2.3x3.8 =[0.4x(2+0.3)]x(3+0.8)=(0.4x2+0.4x0.3)x(3+0.8)=(0.8+0.12)x(3+0.8)=0.92x(3+0.8)=0.92x3+0.92x0.8 =2.76+0.736 =3.496
0.4x2.3x3.8 =0.92x3.8 =0.92x4-0.92x0.2 =3.68-0.184 =3.5-0.04 =3.46 以上就是简便计算过程。
0.4x2.3x3.8 =[0.4x(2+0.3)]x(3+0.8)=(0.4x2+0.4x0.3)x(3+0.8)=(0.8+0.12)x(3+0.8)=0.92x(3+0.8)=0.92x3+0.92x0.8 =2.76+0.736 =3.496
0.4x2.3x3.8 =0.92x3.8 =0.92x4-0.92x0.2 =3.68-0.184 =3.5-0.04 =3.46 以上就是简便计算过程。
0.4x2.3x3.8的简便计算如下:0.4x2.3x3.8=[0.4x(2+0.3)]x(3+0.8)=(0.4x2+0.4x0.3)x(3+0.8)=(0.8+0.12)x(3+0.8)=0.92x(3+0.8)=0.92x3+0.92x0.8=2.76+0.736=3.496。简便计算是一种特殊的计算,它运用了运算定律与数字的基本性质,从而使计算简便,使一个到此结束了?。
=2.3*(0.4*1.3+1)=2.3*(0.4*(1+0.3)+1)=2.3*(0.12+0.4+1)=3.496
0.4✖️2.3✖️3.8的简便方法是什么? -
0.4×2.3×3.8 =0.92×3.8 =0.92×(4一0.2)=0.92×4一0.92×0.2 =3.68一0.184 =3.496
2.5×(3.8×0.4)简便计算。(2.5x0.4)x3.8 =1x3.8 =3.8
0.4×2.3×2.5的简便算怎么简便 -
0.4*2.3*2.5=2.3 可以运用乘法结合律进行简便计算。乘法结合律是乘法运算的一种,也是众多简便方法之一。三个数相乘,先把前两个数相乘,再和另外一个数相乘,或先把后两个数相乘,再和另外一个数相乘,积不变。叫做乘法结合律0.4*2.3*2.5 =2.3*(0.4*2.5)2.3*1 =2.3 还有呢?
0.4x23x2.5 = 0.4x2.5x23 = 1x23 = 23
0.4x3.08简便计算怎么做? -
已经很简单的了,还要简便:原式=0.4x(3+0.08)=1.2+0.032 =1.232
0.4x37.4x2.5 =0.4×2.5×37.4 =1×37.4 =37.4。采纳ok。