Question

0.65×0.7+6.5×0.03计算能用简算用简算怎么计算？

Answer 1

原式=0.65×10×0.7÷10+6.5×0.03
=6.5×0.07+6.5×0.03
=6.5×（0.07+0.03）
=6.5×0.1
=0.65。
最后结果为0.65。

Answer 2

这是建加法和乘法的混合运算，每一个加数部分 含有相同的因数0.65 我们可以用分配率 。
0.65×0.7+6.5×0.03
=0.65×0.7+0.65×0.3
=0.65×（0.7+0.3）
=0.65×1
=0.65

Answer 3

解：原式=6.5x0.1x0.7+6.5x0.03=6.5x0.07+6.5x0.03=6.5X（0.07+0.03）=6.5X0.1=0.65。

Answer 4

0.65×0.7+6.5×0.03
=6.5×0.1×0.7+6.5×0.03
=6.5×(0.1×0.7+0.03)
=6.5×(0.07+0.03)
=6.5×0.1
=0.65

Answer 5

0.65x0.7+6.5x0.03=6.5×0.1×0.7十6.5x0.03=6.5x(0.07+0.03)=6.5x0.1=0.65