Tientallen/eenheden plus tientallen

Optellen
Oefening 1
1. 64 + 20 =
 
2. 28 + 70 =
 
3. 15 + 80 =
 
4. 25 + 10 =
 
5. 27 + 30 =
 
6. 86 + 10 =
 
7. 34 + 50 =
 
8. 41 + 10 =
 
9. 64 + 30 =
 
10. 34 + 30 =
 
Oefening 2
1. 86 + 10 =
 
2. 23 + 40 =
 
3. 66 + 20 =
 
4. 83 + 20 =
 
5. 15 + 90 =
 
6. 41 + 60 =
 
7. 54 + 30 =
 
8. 78 + 20 =
 
9. 21 + 10 =
 
10. 75 + 10 =
 
Oefening 3
1. 61 + 40 =
 
2. 17 + 40 =
 
3. 56 + 30 =
 
4. 36 + 30 =
 
5. 46 + 50 =
 
6. 26 + 10 =
 
7. 27 + 70 =
 
8. 81 + 20 =
 
9. 35 + 20 =
 
10. 65 + 20 =
 
Oefening 4
1. 17 + 30 =
 
2. 87 + 10 =
 
3. 18 + 10 =
 
4. 15 + 40 =
 
5. 24 + 20 =
 
6. 54 + 50 =
 
7. 86 + 10 =
 
8. 75 + 20 =
 
9. 46 + 40 =
 
10. 77 + 20 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Optellen
Oefening 1
1. 64 + 20 =
2. 28 + 70 =
3. 15 + 80 =
4. 25 + 10 =
5. 27 + 30 =
6. 86 + 10 =
7. 34 + 50 =
8. 41 + 10 =
9. 64 + 30 =
10. 34 + 30 =
Oefening 2
1. 86 + 10 =
2. 23 + 40 =
3. 66 + 20 =
4. 83 + 20 =
5. 15 + 90 =
6. 41 + 60 =
7. 54 + 30 =
8. 78 + 20 =
9. 21 + 10 =
10. 75 + 10 =
Oefening 3
1. 61 + 40 =
2. 17 + 40 =
3. 56 + 30 =
4. 36 + 30 =
5. 46 + 50 =
6. 26 + 10 =
7. 27 + 70 =
8. 81 + 20 =
9. 35 + 20 =
10. 65 + 20 =
Oefening 4
1. 17 + 30 =
2. 87 + 10 =
3. 18 + 10 =
4. 15 + 40 =
5. 24 + 20 =
6. 54 + 50 =
7. 86 + 10 =
8. 75 + 20 =
9. 46 + 40 =
10. 77 + 20 =