9÷0.15=
2.04×0.25=
3.744+3.6=
2.5×32×12.5 (6.1-4.6)×0.8
4.14÷(9-7.2) 6.84×1.2+1.2×3.16
52.6×0.9952.6 3.98×1.023.98÷1.02
①54×98
②(+﹣)×24
③4.86×[1÷(2.1﹣2.09)]
④8﹣