(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+(﹣)÷.
42:=x:
x-x=
(2.4×1.5-1.5)÷0.7
(3.2+3.2+3.2+3.2) ×2.5
+-