Tientallen/eenheden plus tientallen

Optellen
Oefening 1
1. 61 + 20 =
 
2. 66 + 20 =
 
3. 78 + 20 =
 
4. 16 + 30 =
 
5. 53 + 40 =
 
6. 82 + 10 =
 
7. 66 + 20 =
 
8. 28 + 10 =
 
9. 61 + 30 =
 
10. 61 + 10 =
 
Oefening 2
1. 41 + 30 =
 
2. 41 + 20 =
 
3. 72 + 20 =
 
4. 32 + 50 =
 
5. 71 + 20 =
 
6. 23 + 10 =
 
7. 66 + 30 =
 
8. 33 + 50 =
 
9. 82 + 10 =
 
10. 76 + 10 =
 
Oefening 3
1. 81 + 10 =
 
2. 73 + 10 =
 
3. 15 + 70 =
 
4. 71 + 10 =
 
5. 48 + 30 =
 
6. 33 + 20 =
 
7. 63 + 30 =
 
8. 38 + 20 =
 
9. 27 + 30 =
 
10. 63 + 20 =
 
Oefening 4
1. 72 + 20 =
 
2. 22 + 80 =
 
3. 76 + 20 =
 
4. 46 + 50 =
 
5. 45 + 20 =
 
6. 83 + 20 =
 
7. 24 + 40 =
 
8. 65 + 10 =
 
9. 76 + 20 =
 
10. 12 + 40 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Optellen
Oefening 1
1. 61 + 20 =
2. 66 + 20 =
3. 78 + 20 =
4. 16 + 30 =
5. 53 + 40 =
6. 82 + 10 =
7. 66 + 20 =
8. 28 + 10 =
9. 61 + 30 =
10. 61 + 10 =
Oefening 2
1. 41 + 30 =
2. 41 + 20 =
3. 72 + 20 =
4. 32 + 50 =
5. 71 + 20 =
6. 23 + 10 =
7. 66 + 30 =
8. 33 + 50 =
9. 82 + 10 =
10. 76 + 10 =
Oefening 3
1. 81 + 10 =
2. 73 + 10 =
3. 15 + 70 =
4. 71 + 10 =
5. 48 + 30 =
6. 33 + 20 =
7. 63 + 30 =
8. 38 + 20 =
9. 27 + 30 =
10. 63 + 20 =
Oefening 4
1. 72 + 20 =
2. 22 + 80 =
3. 76 + 20 =
4. 46 + 50 =
5. 45 + 20 =
6. 83 + 20 =
7. 24 + 40 =
8. 65 + 10 =
9. 76 + 20 =
10. 12 + 40 =