32﹣24÷3 86-(34+36) 2×9+12 72÷8+1
①72-45÷5
②68-19+27
③100-(55-17)
④57-7×4
⑤(89-57)÷8
⑥8+16÷4
①(-+)×24
②14.86﹣(6.28+2.36)﹣3.72
③÷[÷(-)]
④2.4×3.6+3.2×4.8
⑤+++......++
⑥××18×24
① []
②4.6+7.68﹣1+2.32
③1.25×2.5×0.4×8
④9.5×20%+
①0.53×2.5+
②25×0.032×12.5
③ [()×]
④6.83+17.9﹣0.83+32.1