1、20以内的退位减法同步练习一、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 = 15( )= 13( )= 14( )= 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、看图列式答案一 4 9 4 4 7 6 9 9 9 3 8 5二 7 7 7 8 6 7 7 6 9 9 9 5 6 6 14 14-6=8 14-8=6 12 12-7=5 12-5=7 11 11-6=5 11-5=6 12 12-3=9 12-9=3三8 6 4 10 2 8 5 10 3 8 3 10 5 9 2 10 7 9 1 10 8 7 3 10 4 7 4 10 3 8 2 10 6四 5 9 8 8 9 8 6 9 9 9 8 9 8 6 6 6 9 7 9 7 8 8 10 13 6 13 4 5五1 17-10=72. 9+6=153. 15-9=64. 16-7=9