1.01+0.101= 4.3×0.001= 7.2+104= 2.45+2.65= 5×2.4=
1÷1.25= 1÷0.01﹣1×0.01= 10.5﹣3.5÷0.7= 7.2+2.8÷0.4= 3.74÷2.5≈(得数四舍五入精确到百分位)
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]