Tientallen plus tientallen

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

Tientallen plus tientallen
| ANTWOORDEN

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