题目
直接写出得数.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)
答案:1.01+0.101=1.111;4.3×0.001=0.0043;7.2+104=111.2;2.45+2.65=5.1;5×2.4=12; 1÷1.25=0.8;1÷0.01﹣1×0.01=99.99;10.5﹣3.5÷0.7=5.5;7.2+2.8÷0.4=14.2;3.74÷2.5≈1.50.