13-9= | 14-8= | 11-2= | 15-6-4= |
16-7= | 9+8= | 60+9= | 55-50+7= |
96-6= | 30+7= | 20+50= | 99+1= |
___-6=9 13-___=7 8+___=13
11-___=5 17-8=___ 12-3=___+___
___个十和___个一合起来是___ | 写作:___ 读作:___ |
5◯13-7 5+28◯33 35-20◯16
47 | 48 | 49 |
57 | 59 |
=
( )
=
( )
=
( )
=
( )
可以组装( )辆小汽车,还剩 ( )个轮胎。