198×0.53要简便运算
问题描述：
198×0.53要简便运算
答
（200-198）x（0.53-0.3）
=2x0.5+2x0.3
=1+0.6
=1.6
答
(200-2)*0.53=200*0.53-2*0.53=2*53-2*0.53=106-1.06=104.94
答
(200-2)*0.53
106-1.06
=104.94
答
200乘0.53-2乘0.53=104.96
我不会打乘号，汗……
答
=(200- 2)*(0.5+0.03)
=200*0.5+200*0.03-2*0.5-2*0.03
=100+6-1-0.06
=104.94
答
(200-2)*(0.5+0.03)=100-1+6-0.06=104.94