2021年人教版二年級下冊數(shù)學(xué)口算練習(xí)題

1、二年下冊算練明（1221054972110123616631842248 464186 22 1207 724142812567215524330642740536927936425531422 38 4 54889 6 20486 3244 42844861623577295468 87 13573661 11052132481682871268 44885 59 4 5 6 3224569819512-36 124 568 14 58+35 9 98-15= 2+23= 42 86=55+39= 75+435 15= 68-7 8-1=66-6 81-287=54 2= 168-1=24+

2、12 350-9 3+63= 5= 27+51=5+7= 32-8 9=3= 36+84+29= 6= 217+49=15 64+74= 58+32= 2= 31-102= 63 65-16 77+3295-6 7=7+58= 64 8+9= 7=16+96= 439+40 7230-3 93+27= 773-7 155 39-427=55-17= 79+40 63-24 3=29+30 6123 78+42=30 7= 19+9 3= 384= 2558=43-9 17+49=21-0= 19+28=842= 2445+15= 4238-72 (9+0)6= (51-6)28(16-9)=

3、7= 8= 53-328=408 35-47=7 (6+3)= (10-3) 72(42)= 4(23-17)= 57+56=25 (8-1)= 23+18=(27-15)3= 6 89-9 9 727(77-14)7= 99-66= 27 158(24-16)= (5-2) 92+51=21 9=48(22-16)= 61-5 92-77= 51-49=(13-7)3= 4 17+3 28(21-19)= 63= 4+58=(51-11)5= 6= 3= 80-6 2= 3=28(2+2)= 6 89+153= 56(3+5)=27(19-16)= 24(2+2)= 49+168=65+28

4、= (4+23)3= 6=74+29= 424=5= 77+49 9=12 84+27=(4+5)= 54(4+5)= 946=42 (38-2) 8=28+16 8=15(5+0)= 3=84-9 (8+1)5= (9-5)4= (2+6) (23+4)9=71+36= 3 72 19-355= 3549(13-6)= 63-4 89+11=8(20-16)= (51-3)8=5 7= 72 78+22=(30-20)5= (50-8)7=238= 32-71=5 62+68=8 5465= 96-3153 70-4 8=(13-6) 4=629= 87+27(12-9)8= 6 14 3(

5、1+2)=6 (7+9)36 64+24 (14-10)= 40-51+83= (4+3) 4+64= 187=(36-0) (6+9)5= 287= (5+1)= 48+2416 7=(29-15)7= (18-9)5= 155=72 9124= 303= 62-27=49 28+32= 82-38= 20(2+3)= 485=4= 43-102=84-8 42(2+4)= 33-305= (5+4)=(73-19)6= 5= 9=(11-6)6= 6= 403=(54-0)9= 4 (60-12) 24 25= (6+8) 5+26= 126=27(10-7)= 15(2+3)= 3624

6、 6=98+69= 86-69=(6+6) 78+86= 72-20 (7+2)5 489 1618 (44-8)4= (1+8)14(2-0)= (5+4)= 5= 2=6= 68+217= 16497 6= 81-2720 26+567=8 4977-3 2876= (2+16) 56-23=(16+19)5= 21+98= 78+3 )=5 ( 24( ( 30(21-16)= 56)= 1= 6=( ) ( (5+4)=25(22-17)= 2482= 35-7=5+16= 96=6+21= 9+14= 6= 8= 3+37=24(2+6)= 5= 9= 45+71=(13+17)6=

7、 (5+7)4= 81-9 5+37=10(17-12)= 5 (37-7) 32(18-14)= 42(5+1)= (5+2) 279=( ) )=9 )=4 5( 25( ( ( ) ( 27( )=10 )=40 )3=( ) ( 3 ) ( ) ( )4=1 7=( ( ) ( ( ) 2 2 ) ( ) ( ) 35=( ) 32( ( 45( )=4 8 ) 14 )=2 12( ( 27( 85=( ) ( )5=9 7 ) ( ) 18( 7=( ) 6 ) 36 )=6 ( ) ( ) 5( )=25 ( )8=2 ( )6=7 7=( 6 ) ( ) ( ) 6 )=18

8、64( ( ) ( )1=1 6 ) 36 )=4 ( )9=5 )=28 4 ) ( ) ( )5=4 ( ) ( ) )=48 ( 8=( ) ( 7=56( ) )=448( ( 7=36=( ) ( )8=( ) ( 12( ( 2=( ) )=1 )=2 ( )( ) )=5( ) )=510( )40( 26=( )45( 54-( )=4 ( )=30 ( )4=3( ) 83+12=( )( ) 37-( )=336( )( ( ) )=24 48+47=( )6=( ) ) ( )+22=89( )45( 57+13=( ) 9 ( 7=( ) 37+( )=92( ) 54-28=( )8( )=16 ( )4=5 )=29 34+29=( 64( )=97 ( ( )91-( )=82 7( )=218( )30( 75=( ) 41+19=( ( 24 8 ) ( 4( )=20 ( )7=9 ( )7( ( ) )=60 )35( 54-( ( ) ( )( ( )3=129( )=36 )( ) ( 6( )=18 76+16=( )( )