0.84*5+0.5*0.6简算
问题描述:
0.84*5+0.5*0.6简算
答
0.84*5+0.5*0.6
=0.84*5+5*0.06
=(0.84+0.06)*5
=0.9*5
=4.5
答
0.84×5+0.5×0.6
=8.4×0.5+0.5×0.6
=0.5×(8.4+0.6)
=0.5×9
=4.5