Question

8.5x5.4-5.1÷0.17的简便计算？

Answer 1

8.5x5.4-5.1÷0.17的简便计算？
8.5x5.4-5.1÷0.17
=8.5x3x1.8-3x1.7÷0.17
=8.5x3x1.8-30
=5x1.7x3x2x0.9-30
=30x(1.7x0.9-1)
=30x(1.7-0.17-1)
=30x(0.7-0.17)
=21-5.1
=15.9

Answer 2

这道题没有特殊性，只能按普通算法计算
8.5×5.4-5.1÷0.17
=45.9-30
=15.9