125×9×8 35×24+24×65 75×102
560÷[(135-127)×7] 350-15×3+17 640÷[(30+50)×2]
①455÷[(109﹣102)×13]
②156÷12×15+35
③(2400÷48﹣40)×2
④140×[133﹣(154﹣31)]
①7.41+2.4+1.59+3.6
②49×102﹣2×49
③3600÷25÷4
④[780÷(129﹣114)]×32
⑤76.72﹣(35.28+6.72)
⑥8×23×125
①0.25×16.2×4
②375+450÷18×25
③35.6- +34.4-
④ × + ÷
⑤[( - )× ]÷
⑥3.5× +5.5×80%+0.8