| 1 | 8 - 7= | 2 | 16 - 10= | 3 | 10 + 2= | 4 | 16 - 7= | ||||
| 5 | 8 - 3= | 6 | 14 + 2= | 7 | 10 - 3= | 8 | 7 - 4= | ||||
| 9 | 19 - 8= | 10 | 18 + 9= | 11 | 13 + 9= | 12 | 9 + 2= | ||||
| 13 | 2 + 1= | 14 | 7 - 7= | 15 | 3 - 2= | 16 | 19 - 6= | ||||
| 17 | 11 - 3= | 18 | 5 + 10= | 19 | 11 - 4= | 20 | 4 + 5= | ||||
Mathetic Practice
G1_1: operations of add&subt practice within 20
0
0
0%
0
