Question

9/100×3.2+5.3+9/100×3/2×9/100简算

Answer 1

9/100×3.2+5.3×9/100+3/2×9/100

=9/100×(3.2+5.3+3/2)

=9/100×10

=9/10

27×(15/27-15/37)×37

=(27×15/27-27×15/37)×37

=15×37-27×15/37×37

=15×37-15×27

=150