9.35+4.65= 3.6﹣0.86= 0.99÷99=
0.125×16= 4.7﹣4.7×0.1= 10+5.5÷0.1=
①2.25÷0.25×4
②48.4﹣8.76+11.6﹣21.34
③3.8÷1.25
④15.3×7.6+15.3×3.4﹣15.3
⑤(7.504﹣4.6)÷0.48×5.6
⑥30.1÷[(6.07+2.53)×0.7]
一只手机的体积约是50;一个仓库的占地面积约是30.