1、 二年级数学下学期口算试题37-9= 18-6= 45+4= 45+8= 38-30= 568=357= 25+20= 497= 426= 357= 49-9=6+6= 486= 41-8= 728= 408= 82+9=57= 63= 67= 77= 728= 72-20=34-8= 68= 96= 59= 369= 55-8=23-10= 75= 29+4= 94= 729= 637=38= 76= 8+27= 639= 459= 46-8=287= 24+40= 427= 91= 648= 65=284= 64= 42= 56= 72-8= 819=30-21= 93= 546= 91=
2、 426= 86=37+9= 18+6= 45-8= 38+30= 355= 25-20= 306= 217= 6+56= 186= 168= 279=88= 57= 93= 88= 328= 34-10= 78= 59= 189= 23-20= 77= 94= 279= 37= 86= 147= 549= 28729+40= 71= 248= 244= 84= 53=72+8= 30-11= 99= 88= 164= 18+29=426= 68= 9+36= 18+63= 36+23= 36+23=84= 78= 28-17= 41-35= 32-28= 73+18=45+45= 5687=
3、 4977= 49-9+30=4056= 40+67= 676= 72-20+10=969= 55+10-8= 29+4-20= 6379=8+27+2= 46+8+4= 4276= 656=429= (21+6)9= (7+23)6= (29-21)6=( ) - 7=38 40 ( )=12 ( )-56=32 35+( )=5039 =27+( )83 =33+( ) 29=( )-10 58=( )+632=72-( ) 34=( )+8 61=95-( ) 51=( )-2162 + ( )=70 47 -( )=4o 24 + ( )=42 ( )+ 8=1650=85-( ) 25=88-( ) 39=( )-15 17=35-( )31=70-( ) ( ) - 2=35 24 ( )=12 ( )-56=3081 + ( )=90 24 +( )=4o 24 +( )=30 ( )+21=56( )-21=69 56-( )=33 ( )+ 6=51 35 =26+( )44=( )+6 50=65-( ) 75=87-( ) 18=25-( )51=75-( ) 16=21-( ) 19=( )+15 ( ) - 2=3