二年級(jí)數(shù)學(xué)下冊脫式計(jì)算練習(xí)題(人教版)

1、二年級(jí)下冊混合運(yùn)算練習(xí)題x-+77-46+3265-38+2679+19-56=(58-34 ) +884-27+16=4+27-16=93+23+9469-(39-23)99+ (25-24)=(2+7) x 86x (2 + 6)3x9x3=4x6+720+4+56x8+5=(75-18) x 79x6 + 410+5x4=77-76+3261-38+2679+19-16=18-36+2787-27+1630+(23-29)=73-23-493-(39-23)71- (25-24)=99-46+3265-39+2699+99-56=59-36+2994-29+9630-(23-29)=93

2、-23+9433-(39-23)99- (25-24=99-96+3269-39+2699+99-96=6x2+77x (45 + 5)19+9x6=(19 + 2) +3(36+4) +2732+4+16=29-4x216-2x742-6x7=99-36+2999-29+9630-(23+29)=3+23+9493-(39-23)99- (99-29=55-46+2265-28+2658+18-56=58-26+2584-25+16=4+25-16=82+22+8468-(28-22)88+ (25-24)=55-56+2261-28+2658+18-16=18-26+2585-25+162

3、0+(22-28)=52-22-482-(28-22)51-(25-24)=88-46+2265-28+2688+88-56=58-26+2884-28+8620-(22-28)=82-22+8422-(28-22)88- (25-24)=88-86+2268-28+2688+88-86=88-26+2888-28+8620-(22+28)=22+22+8482-(28-22)88+ (88-28)=77-46+3263-38+2679+19-36=76+ 72 + 8(100-63) x 838 (49 21)=(6+ 2) x 7(40-28) +6(42+30) x2=5x3+99x8

4、+ 308x7+30=6x8 + 6(66-50) +236 - (2 + 4)=38-36+2784-27+16=4+27-16=93+23+9469-(39-23)99+ (23-24=77-76+3261-38+2679+19-16=18-36+2787-27+1630+(23-29)=73-23-493-(39-23)71-(23-24)=99-46+3263-39+2699+99-36=39-36+2994-29+9630-(23-29)=42- (1 + 6)6x (5 + 4)6+ 8x493-23+9433-(39-23)99- (23-24)=99-96+3269-39+26

5、99+99-96=99-36+2999-29+9630-(23+29)=23+23+9493-(39-23)99- (99-29)=30- (19+2)(26+28) +934+8x2=(3+5) x636+9x6=(88-16) +8=9x 8-213+4x 68x4+6=42-7x660 9x42x (2+5)=33-46+2263-28+2638+18-36=38-26+2384-23+164+23-16=82+22+8468-(28-22)88+ (23-24)=33-36+2261-28+2638+18-16=36+74-2636+34-2696+99-26=36+94-2616+7

6、7-2696+99-26=86+88-2656+94-2656+84-26=72- (3x3)(42-20) +29x8 + 51=36+5x77+ ( 10-3)56-8x7=(75-18) x 79x6 + 424-4x8=81- (1x9)(82-26) +74x8 + 51=36+7x763+ ( 21-12)56-8x7=(35-28) x 79x6 + 4236-4x8=55+7x749+ ( 14-7)81+9x8=(79 23)87x6 + 4216+ 4x8=24+12+635-63+ 75x8-39=(23+49)848-18+ 38x7-34=(52-45)623+ 5x

7、82x6+ 37=7x 5+1832+4+2572+(24-16)=(34+47)-956 2x690 3x9=54+18 635-21+ 78x8-39=(33+49)6848-24+ 38x 7- 55=(39-30 )623+ 6x 86x6+ 27=7x 5+1812+ 4+7564+ (24-16)=(85-31 ) +956 6x690 9x9=88- (46 + 2)(68-23) +954+ 9x2=(4+5) x 681+9x6=(79-23) +8=80- (19+42)(21+15) +964+ 8x2=30- (19+2)(26+28) +934+8x2=(3+5) x

8、 636-9x 6=(88- 16) +8=76 + 72 -8(100-63) x 838-(49-21)=(2+7) x 86x (2 + 6)3x9x3=4x6+720-4 + 56x8 + 5=(75-18) x 79x6 + 410+ 5x4=42- (1 + 6)6x (5 + 4)6+ 8x4=(6 + 2) x 7(40-28) +6(42+30) x 2=5x 3+ 99x8+308x7+30=6x 8+6(6650) +236+ (2+4)=9x8213 + 4x68x4+6=42 + 7x660 9x42x (2+5)=72+ (3x3)(42 20) +29x8 + 5

9、1=36+ 5x77一 (103)56+ 8x7=(7518) x 79x6 + 424+ 4x8=6x 2+77x (45 + 5)19+ 9x6=(19 + 2) +3(36 + 4) +2732+ 4+16=29-4x216+ 2x742+ 6x7=30- (19+2)(26+28) +934+8x2=(3+ 5) x 636+9x6=(8816) +8=76+ 72 + 8(100-63) x 838(4921)=(2+7) x 86x (2 + 6)3x9x3=4x 6+720+ 4 + 56x8 + 5=(7518) x 79x6 + 410+ 5x4=42+ (1 + 6)6x (5 + 4)6+ 8x4=(6+ 2) x 7(40 28) +6(42 + 30) x 2=5x 3+ 99x8+308x7+30=6x8+6(6650) +236+ (2+4)=9義 8-213 + 4x68x4+6=42 + 7x6609 x 42x (2+5)=72