Question

8.53×95.6-75.3×9.56怎样简便运算?

Answer 1

解 :原式=85.3*9.56-75.3*9.56 根据乘法的性质变换85.3*9.56=(8.3*10)*(95.6/10)=85.3*9.56.

=(85.3-75.3)*9.56 乘法分配律的逆运算.

=10*9.56

=95.6

或：

解 :原式=8.53*95.3-7.53*95.3 据乘法的性质变换9.56*75.3= (75.3/10) * (9.53*10)=7.53*95.3.

=(85.3-75.3)*9.56 乘法分配律的逆运算.

=1*9.56

=95.6