Tientallen en eenheden optellen

Erbijsommen
Oefening 1
1. 20 + 7 =
 
2. 30 + 9 =
 
3. 60 + 1 =
 
4. 30 + 1 =
 
5. 40 + 6 =
 
6. 30 + 4 =
 
7. 90 + 1 =
 
8. 70 + 7 =
 
9. 20 + 4 =
 
10. 10 + 3 =
 
Oefening 2
1. 70 + 8 =
 
2. 60 + 6 =
 
3. 50 + 8 =
 
4. 40 + 7 =
 
5. 90 + 6 =
 
6. 20 + 2 =
 
7. 60 + 2 =
 
8. 10 + 7 =
 
9. 60 + 6 =
 
10. 60 + 9 =
 
Oefening 3
1. 10 + 4 =
 
2. 60 + 2 =
 
3. 70 + 8 =
 
4. 80 + 5 =
 
5. 70 + 7 =
 
6. 40 + 1 =
 
7. 80 + 7 =
 
8. 90 + 1 =
 
9. 20 + 1 =
 
10. 70 + 6 =
 
Oefening 4
1. 30 + 5 =
 
2. 60 + 5 =
 
3. 80 + 2 =
 
4. 70 + 2 =
 
5. 80 + 2 =
 
6. 70 + 5 =
 
7. 30 + 3 =
 
8. 80 + 8 =
 
9. 30 + 6 =
 
10. 50 + 7 =
 

Tientallen en eenheden optellen
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 20 + 7 =
2. 30 + 9 =
3. 60 + 1 =
4. 30 + 1 =
5. 40 + 6 =
6. 30 + 4 =
7. 90 + 1 =
8. 70 + 7 =
9. 20 + 4 =
10. 10 + 3 =
Oefening 2
1. 70 + 8 =
2. 60 + 6 =
3. 50 + 8 =
4. 40 + 7 =
5. 90 + 6 =
6. 20 + 2 =
7. 60 + 2 =
8. 10 + 7 =
9. 60 + 6 =
10. 60 + 9 =
Oefening 3
1. 10 + 4 =
2. 60 + 2 =
3. 70 + 8 =
4. 80 + 5 =
5. 70 + 7 =
6. 40 + 1 =
7. 80 + 7 =
8. 90 + 1 =
9. 20 + 1 =
10. 70 + 6 =
Oefening 4
1. 30 + 5 =
2. 60 + 5 =
3. 80 + 2 =
4. 70 + 2 =
5. 80 + 2 =
6. 70 + 5 =
7. 30 + 3 =
8. 80 + 8 =
9. 30 + 6 =
10. 50 + 7 =