①70×35-1450
②504÷(36÷12)
③925-366×2
④465÷5+321
⑤655÷5×12
⑥26+248÷8
①168+210÷3
②720÷(4×2)
③280÷4-58
④735÷5÷7
①8×2.5×0.125÷
②(+﹣)×24
③6.5÷×
④(+)×+
⑤4×(﹣)×9
⑥÷7+×