3道简便运算带答案
问题描述：
3道简便运算带答案
答
1.06×2.5×4
=1.06×(2.5×4)
=1.06*10
=10.6
14.5*7.3+1.45*27
=14.5*7.3+14.5*2.7
=14.5*(7.3+2.7)
=14.5*10
=145
1.25÷4×0.8
=1.25×0.8÷4
=1÷4
=0.25