①(-+)×24
②14.86﹣(6.28+2.36)﹣3.72
③÷[÷(-)]
④2.4×3.6+3.2×4.8
⑤+++......++
⑥××18×24
①4080÷12﹣24×1.5
② ﹣ + ﹣
③48×75%+53× ﹣0.75
④8×( + )+
⑤ ÷[ ×( ﹣ )]
⑥ + + + +