32+6.4+68+3.6 27+0.4-8.27 18.51-9.03-0.97
①235-(456+304)÷4
②600÷[(160-76)÷7]
③95+560÷14×28
④640÷[8×(3.7+4.3)]
4.6×0.5-1.94 15.89×0.35+0.65×15.89
20.9-8.25-1.75 4×20×0.25
①8(x﹣6.2)=41.6
②15.8﹣ +14.2﹣
③0.125×76+12.5%×24
④ x+ x=30
⑤
⑥
①8×2.5×0.125÷
②(+﹣)×24
③6.5÷×
④(+)×+
⑤4×(﹣)×9
⑥÷7+×