Question

(8.6-1.7)*0.08简便计算？

Answer 1

(8.6-1.7)*0.08简便计算？
(8.6-1.7)x0.08
=6.9x0.08
=7x0.08-0.1x0.08
=0.56-0.008
=0.552

Answer 2

（8.6-1.7）×0.08
=（10-1.4-1.7）×0.08
=10×0.08-（1.4+1.7）×0.08
=0.8-（3+0.1）×0.08
=0.8-3×0.08-0.1×0.08
=0.8-0.24-0.008
=0.552