二年级数学下册脱式计算题

1、77-46+3265-38+2679+19-56=二二(58-34)+884-27+16=4+27-16=93+23+9469-(39-23)99+(25-24)=二(2+7)X86X(2+6)3X9X3=二二=二二4X6+720+4+56X8+5=二二=二二(7518)又79X6+410+5X4=二二=77-76+3261-38+2679+19-16=二=二18-36+2787-27+1630+(23-29)=73-23-493-(39-23)71-(25-24=二=二99-46+3265-39+2699+99-56=二=二59-36+2994-29+9630-(23-29)=93-23+9

2、433-(39-23)99-(25-24=二=二99-96+3269-39+2699+99-96=二6X2+77X(45+5)19+9X6=二二=二(19+2)+3(36+4)+2732+4+16=二二=二29-4X216+2X742+6X7=二二=二二99-36+2999-29+9630-(23+29)=二二=二3+23+9493-(39-23)99-(99-29=二二=55-46+2265-28+2658+18-56=二58-26+2584-25+16=4+25-16=82+22+8468-(28-22)88+(25-24=二=二55-56+2261-28+2658+18-16=二=二18

3、-26+2585-25+1620+(22-28)=52-22-482-(28-22)51-(25-24=二二=二二88-46+2265-28+2638+48-56=58-26+2884-28+8620-(42-28)=82-22+8422-(28-22)88-(25-24=二=二88-86+2268-28+2688+88-86=二=二88-26+2888-28+8620-(22+28)=22+22+8482-(28-22)88+(88-28=77-46+3263-38+2679+19-36=二二=二42+(1+6)6X(5+4)68X4二二二二二二(6+2)X7(4028)+6(42+30)X

4、2二二二二二5X3+99X8+308X7+30二二二二二6X8+6(66-50)+236+(2+4)二二二二二二38-36+2784-27+16=4+27-16二二二二93+23+9469-(39-23)99+(23-24)二二二=76+ 72 + 8(100 63) X838(4921)77-76+3261-38+2679+19-16二二二=18-36+2787-27+1630+(23-29)73-23-493-(39-23)71-(23-24二二99-46+3263-39+2699+99-36二=39-36+2994-29+9630-(23-29)二二二二93-23+9433-(39-23

5、)99-(23-24二二二二二二99-96+3269-39+2699+99-96二二二二二二99-36+2999-29+9630-(23+29)=23+23+9493-(39-23)99-(99-29)二二30-(19+2)(2628)+934+8X2二二二二二二(3+5)X636+9X6=(8816)+8二二二二二二9X8213+4X68X4+6二二二二二二42+7X6609X42X(2+5)二二二二二二33-46+2263-28+2638+18-36二二二二二二38-26+2384-23+164+23-16=82+22+8468-(28-22)88+(23-24二二二二33-36+2261

6、-28+2638+18-16二二二36+74-2636+34-2696+99-2636+94-2616+77-2696+99-26二二二二二二86+88-2656+94-2656+84-26二二72:(3X3)(4220)+29X8+51二二二二二二36+5X77一(103)56+8X7二二二二二(7518)X79X6424+4X8=81+(1X9)(8226)+74X8+51二二二二二二36+7X763+(2112)56+8X7二二二二二二(3528)X79X6+4236+4X8二二二二二557X749+(147)81+9X8二二二二二二(7923)+87X6+4216+4X8二二二二二24+12:635-63-75X8-39二二二二二二(23+49)+848-18-38X7-34二二二=(52-45)X623+5X82X6+37=7X5+1832+4+2572-(24-16)=(34+47)+956-2X690-3X9=54+18+635-21+78X8-39=(33+49)-6848-24+38X7-55=(39-30)x623+6X86X6+27=7X5+1812