0.75×10.1 8.54×99+8.54 15.8+8.2×1.3
①
②36×()
③
④
⑤3.24×0.76+3.24×0.24
⑥
①54×98
②(+﹣)×24
③4.86×[1÷(2.1﹣2.09)]
④8﹣