Question

45.8×9.9+4.59简便运算怎么算？

Answer 1

你好！解答如下：
45.8×9.9+4.59
= 45.8×（10-0.1）+4.59
=458- 4.58+4.59
=458.01

Answer 2

根据题意计算过程如下:
45.8×9.9+4.59
＝45.8×9.9+4.58+0.01
＝45.8×（9.9+0.1）+0.01
＝45.8×10+0.01
＝458.01

Answer 3

45.8×9.9+4.59
=45.8×9.9+4.58+0.01
=45.8×9.9+45.8*0.1+0.01
=45.8*（9.9+0.1）+0.01
=45.8*10+0.01
=458.01

Answer 4

这是乘法和加法的混合运算，逆用乘法分配律简化运算。具体过程如下:
45.9×9.9+4.59
=45.9×9.9+45.9×0.1
=45.9×(9.9+0.1)
=45.9×10
=459

Answer 5

45.8×9.9+4.59
=45.8×9.9+4.58+0.01
=45.8×9.9+4.58×1+0.01
=45.8×9.9+45.8×0.1+0.01
=45.8×（9.9+0.1）+0.01
=45.8×10+0.01
=458+0.01
=458.01