33-12+29 28+25-33
56÷7×9 48÷6×4
①68-19+25
②42÷6×8
③81-(40-24)
④64-56÷7
⑤53+3×9
⑥(18+36)÷9
①0.25×16.2×4
②375+450÷18×25
③35.6- +34.4-
④ × + ÷
⑤[( - )× ]÷
⑥3.5× +5.5×80%+0.8
①2.4÷×
②(+﹣)×36
③×99
④29.3﹣12.6﹣7.4
⑤5.9×8.5﹣49×0.85
⑥×[6÷(﹣)]