18+(50-45)=22-(14+3)=20+(32-8)=62+(28-2)=40-(10-5)=80+(10-9)=18+(95-85)=40+(16-7)=40-(24-14)=40+(50-20)=70-(30-9)=26+(14-6)=82+(35-30)=15+(45-40)=7+(39-10)=26+(8+4)=83+(19-8)=48-(14+8)=48-(4+6)=42-(19-5)=69-(14-6)=19+(8+4)=23+(19-8)=45-(2+8)=36-(4+6)=79-(19-5)=60-(4+6)=25+(8+4)=28+(19-8)=46-(2+8)=小括号口算练习题姓名:年级:66-(27+9)=38+(14+9)=29+(27+6)=87-(29+6)=45+(55-2)=100-(39+5)=24+(47-6)=88-(66-9)=28+(19+7)=56+(56-9)=51-(62-9)=73-(37+8)=29+(36-9)=90-(13+8)=100-(87-8)=66-(39+7)=75-(18+7)=100-(55+5)=100-(65-6)=67-(29-8)=66-(27+9)=38+(14+9)=29+(28+2)=87-(29+6)=45+(55-2)=100-(29+4)=29+(47-6)=88-(66-9)=28+(18+1)=58+(56-9)=51-(62-9)=73-(35+3)=39+(36-9)=90-(13+8)=100-(87-4)=46-(39+1)=75-(18+7)=100-(55+4)=100-(65-6)=67-(27-8)=88-(66-4)=22+(19+7)=56+(56-9)=51-(32-3)=75-(37+8)=29+(36-2)=90-(53+6)=95-(87-8)=
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