(遂昌县)用递等式计算.①[1﹣(+)]×36②(+)×36③7.5×4.7+4.7×2.5④25.3×12﹣33.46÷0.35⑤×[÷(1﹣)]⑥+(﹣)÷.
(1–×)÷ [(1–)×]÷4
[(1–)×]÷4++
(–)÷(+)[1–(+)]÷3.5
25÷(–)+–
–(+)×–