Question

0.9✖️56.2➕56.2➗10简便方法？

Answer 1

=0.9x56.2+56.2x0.1

=（0.9+0.1）x56.2

=1x56.2

=56.2

Answer 2

0.9*56.2+56.2÷10
=9/10 *56.2+56.2 *1/10
=56.2*(9/10+1/10)
=56.2

Answer 3

0.9×56.2+56.2÷10
=0.9×56.2+56.2×1/10
=56.9×(0.9+1/10)
=56.9×(0.9+0.1)
=56.9×1
=56.9
除以一个数等于乘以这个数的倒数
所以56.9÷10就可以看成是56.9×1/10
然后运用乘法结合律
就可以进行简便运算

Answer 4

0.9X56.2十56.2÷10
=0.9ⅹ56.2十56.2X0.1
=(0.9+0.1)X56.2
=10X56.2
=562。

Answer 5

简便计算如下
0.9×56.2+56.2÷10
=(1-0.1)×56.2+5.62
=56.2-5.62+5.62
=56.2