题目内容
计算下题能简算的要简算
5.4×[1－(2.1－2.09)]
5.346
13.75＋450÷1.8×0.25
0.93＋(0.93＋0.07)÷0.1
8.2×1.9＋1.606÷8.03
(83÷0.5＋34)×(1.14－1.04)
(7.2×88＋88×7.2)÷7.2
