×33+66×62.5%+0.625 15.72-2.17-1.83
×[÷(-)] -÷2+5
-4 75% -0.5
3.06-[1.8×(2.41-1.91)]
①1375+450÷18×25 ②41×25%+×60-0.25
③ ④17.8-
⑤ ⑥
2.5×3.2×1.25 12.7-1.34-1.36
743-450÷18×25
问题: