①0.75÷[×(0.5﹣)] ②13.7﹣1.32+1.7﹣3.68
③125%×3.2×25 ④11×(+)×9
①
②0.25×0.125×3.2
③
④
②
①÷×
②×3.2+6.8÷
③105×(+)
④﹣+﹣
⑤6.4÷[(3﹣1.4)×]
①21×16÷14+76
②9- -
③ ×0.8×12.5
④48×( + - )
⑤7.6×9.4- +7.6×1.6
⑥ ×[ ÷(0.4- )]