Question

2.5+2.5÷0.5-0.5×3 （1.5+1.5×3）÷0.6+0.4 10.6-（8.4×0.6-0.54）÷0.？

Answer 1

2.5+2.5÷0.5-0.5×3
=2.5+5-1.5
=7.5-1.5
=6
（1.5+1.5×3）÷0.6+0.4
=6÷0.6+0.4
=10+0.4
=10.4
10.6-（8.4×0.6-0.54）÷0.9
=10.6-（5.04-0.54）÷0.9
=10.6-4.5÷0.9
=10.4-5
=5.4
24-【22.7-（9.82-2.02）】
=24-【22.7-7.8】
=24-14.9
=9.1
【（17-4.5）×0.2+7.5】×0.31
=【12.5×0.2+7.5】×0.31
=【2.5+7.5】×0.31
=10×0.31
=3.1,4,网上再查一下！,0,2.5+2.5÷0.5-0.5×3 （1.5+1.5×3）÷0.6+0.4 10.6-（8.4×0.6-0.54）÷0.9
24-【22.7-（9.82-2.02）】 【（17-4.5）×0.2+7.5】×0.31