×5= ×7= ×7+26= 93-6 五分钟内做完
8×7+23=×7+36= ×6+18= ×3+27=
40-6×6=×9+55=48-3×9=7-426+5×9=7+633-4×4=5-649+5×3=8+422-6×2=
18-17×7+28=52-37+28=77-19+21=53-37+19=14+18+46= ×9= 5-×8+16= ×8=-3×9= 5+7×9= 5-7×4= 16+6×4=-5×9+28=×8=-5×6+29=
×6=9-7×4=9+7×7=9-9×8=8+2×7=5-7×8+35=×7= ×7+29= ×8= ×7= ×9= ×8= ×7= ×9+26= 93-7 加减混合题
- 1 -
77-46+328-36+293+23+947-76+365-38+264-27+169-1-38+2- -
79+19-56 4+27-16 99+79+19-16
73-23-99-46+329-36+293-23+993-5-39+264-29+963- - - 71- 99+99-56 30- 99-
99-36+293+23+945-46+228-26+299-29+963-5-28+264-25+1- - 30-
99-58+18-56 4+25-16
82+22+845-56+218-26+252-22-88-46+268-1-28+265-25+162-5-28+2- -
88+ 58+18-16 20+ 51- 88+88-56