Question

45.6×(23.5-3.47)-6.53×45.6简便运算

Answer 1

=45.6*（23.5-3.47-6.53）
=45.6*[23.5-（3.47+6.53）]
=45.6*（23.5-10）
=45.6*13.5
=615.6

Answer 2

将算式45.6×（23.5-3.47）-6.53×45.6=45.6×20.03-6.53×45.6，运用乘法分配律，45.6×（20.03-6.53）=45.6×13.5=615.6。