1、20以内的退位减法习题3一、填一填 9+( )=13 ( )+6 =15 8+( )=12 7+( )=118+( )=15 7+( )=13 ( )+3 =12 7+( )=16( )+9 =18 ( )+8 =11 8+( )=16 ( )+7 =12二、我会用想加算减法8+( )=15 7+( )=13 5+( )=14 6+( )=12158 = 136 = 145 = 14( )= 12( )= 11( )= 126 =8 + 6 = 7 + 5 = 6 + 5 = 9 + 3 =三、我会用破十法710117 9 = 14 8 = 15 7 =13 5 = 12 3 = 11 2 =
2、13 6 = 14 7 = 12 4= 四、看谁算得又对又快。138= 123= 157= 179=167= 135= 148= 156=123= 189= 113= 145=168= 137= 159= 126=112= 158= 134= 169=146= 124= 177= 152=1610= 185= 139= 116=五、看图列式参考答案:一、填一填 9+( 4 )=13 (9 )+6 =15 8+(4 )=12 7+( 4 )=118+( 7 )=15 7+(6 )=13 (9 )+3 =12 7+( 9 )=16( 9 )+9 =18 (3 )+8 =11 8+(8 )=16 (
3、5 )+7 =12二、我会用想加算减法8+( 7 )=15 7+( 6 )=13 5+( 9 )=14 6+( 6 )=12158 =7 136 = 7 145 = 9 14(8 )= 6 12( 7)= 5 11( 6 )= 5 126 =68 + 6 = 14 7 + 5 =12 6 + 5 =11 9 + 3 =12三、我会用破十法略四、看谁算得又对又快。138=5 123=9 157= 8 179=8167=9 135=8 148=6 156=9123=9 189=9 113=8 145=9168=8 137=6 159=6 126=6112=9 158=7 134=9 169=7146=8 124=8 177=10 152=131610=6 185=13 139=4 116=5五、看图列式1、17-10=72、9+6=153、15-9=64、16-7=9