二年级下册数学专项练习-脱式计算

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1、77-46+3265-38+2679+19-56(58-34)4-884-27+16=4+27-1663+23-5469-(39-23)99+(25-24)(2+7)X86X(2+6)3X9X34X6+7204~4+56X8+5(75-18)X79X6+410+5X477-76+3261-38+2679+19-1618-36+2787-27+1630+(23-29)73-23-493-(39-23)71-(25-24)99-46+3265-39+2699+99-5659—36+2994-29+9630-(23-29)93-23+9433-(39-23)9

2、9-(25-24)99-96+3269-39+2699+99-966X2+77X(454-5)19+9X6(19+2)4-3(364-4)+2732*4+1629-4X2164-2X7424-6X799-36+2999-29+9630-(23+29)3+23+9493-(39-23)99-(99-29)55-46+2265-28+2658+18-5658-26+2584-25+16=4+25-1682+22+8468-(28-22)88+(25-24)55-56+2261-28+2658+18-1618-26+2585-25+1620+(22-28)52

3、-22-482-(28-22)51-(25-24)88-46+2265-28+2688+88-5658-26+2884-28+8620-(22-28)82-22+8422-(28-22)88-(25-24)88-86+2268-28+2688+88-8688-26+2888-28+8620-(22+28)22+22+8482-(28-22)88+(88-28)77-46+3263-38+2679+19-3676+724-8(100—63)X838-(49-21)424-(1+6)6X(5+4)6+8X4(6+2)X7(40-28)4-6(42+30)X2

4、5X3+99X8+308X7+306X8+6(66-50)4-2364-(2+4)38-36+2784-27+16=4+27-1693+23+9469-(39-23)99+(23-24)77-76+3261-38+2679+19-1618-36+2787-27+1630+(23-29)73-23-493-(39-23)71-(23-24)99-46+3263-39+2699+99-3639-36+2994-29+9630-(23-29)93-23+9433-(39-23)99-(23-24)99-96+3269-39+2699+99-9699-36+29

5、99-29+9630-(23+29)23+23+9493-(39-23)99-(99-29)30-(19+2)(26+28)一934+8X2(3+5)X6364-9X6=(88-16)4-89X8-213+4X68X4+6424-7X660-9X42X(2+5)33-46+2263-28+2638+18-3638-26+2384-23+164+23-1682+22+8468-(28-22)88+(23-24)33-36+2261-28+2638+18-1636+74-2636+34-2696+99-2636+94-2616+77-2696+99-2686

6、+88-2656+94-2656+84-26724-(3X3)(42-20)4-29X8+5136+5X774-(10-3)564-8X7(75-18)X79X6+4244-4X8814-(1X9)(82-26)4-74X8+5136+7X763十(21-12)564-8X7(35-28)X79X6+42364-4X855+7X7494-(14-7)814-9X8(79-23)4-87X6+42164-4X824+124-635-634-75X8-39(23+49)-4-848-184-38X7-34(52-45)X623+5X82X6+377X5+18

7、324+25724-(24-16)(34+47)4-956-2X690-3X954+184-635-214-78X8-39(33+49)-6848-244-38X7—55(39-30)X623+6X86X6+277X5+18124-4+75644-(24-16)(85-31)4-956-6X690-9X988-(46+2)(68-23)4-954+9X2(4+5)X6814-9X6=(79-23)4-880-(19+42)(21+15)4-964+8X230-(19+2)(26+28)4-934+8X2(3+5)X6364-9X6=(88-16)一876

8、+724-8(100-63)X838-(49-21)(2+7)X86X(2+6)