三年级脱式计算练习题82×(49÷7)930÷(3×2)720÷3÷6225÷5÷9========425÷5×6204×3÷4652-208÷4(178+167)÷5========748-609÷3========462-52×8========375+570÷3========3500-129×7========250÷5+175========32÷8+9========518-160÷5640÷4÷5676+672÷6159+186÷645+972÷9125×4÷5486÷(3×3)658-648÷8360÷5÷6283+72÷8272÷(2×4)784-660÷61325+714÷7860+140÷71000+333×7(503-188)÷5795-600÷2752÷(4×2)96+148÷2958-630÷9576÷4÷3807-76×3========100+888÷8416÷(2×4)728÷7÷4375+(374÷2)========(603-478)÷5========(601-246)÷5========407+521-469========1500÷(5×10)========25+32×2352+18======61+12×2343+21======984÷6÷4280+280÷5606÷6+60672×3÷4108÷4÷3222÷(2×3)900-18×281×7÷9×1217+34×2345+322456÷6+289250+250÷5(218-190)÷4854÷7-86×19×5538+25×3148+52×2187+35×49======99+46×9744+81×3331+98×76======38+53×4767+81======56+56×76190+18======96+72×4498+55======32+58×8625+67=