①1375+450÷18×25 ②41×25%+×60-0.25
③ ④17.8-
⑤ ⑥
2.3×1.5+4.5÷0.75 (7.5+2.5)÷0.25
24x-1.6x=36
①
②×5.8+×120%
③15.7×3.6-5.7×
④0.625+74×-3×62.5%
②
③