①(36.18÷1.8-14.5)× 20
②7.625-()-2.75
③12.5×3.2×2.5
④3÷7+48×
⑤(36+)÷(1÷)
⑥
①9.52÷3.4+4.8×0.375
②18.67﹣(5.77+4.17)﹣4.23
③31.3×8.1+12.5×6.1+43.8×1.9
④×+++
⑤2.31+[(4.75-×0.4)×]