Tientallen/eenheden plus tientallen

Optellen
Oefening 1
1. 81 + 10 =
 
2. 41 + 30 =
 
3. 57 + 20 =
 
4. 56 + 20 =
 
5. 15 + 70 =
 
6. 64 + 30 =
 
7. 42 + 40 =
 
8. 44 + 20 =
 
9. 71 + 20 =
 
10. 24 + 10 =
 
Oefening 2
1. 31 + 50 =
 
2. 28 + 70 =
 
3. 42 + 20 =
 
4. 22 + 40 =
 
5. 53 + 10 =
 
6. 18 + 70 =
 
7. 36 + 60 =
 
8. 82 + 10 =
 
9. 65 + 20 =
 
10. 55 + 30 =
 
Oefening 3
1. 67 + 10 =
 
2. 48 + 20 =
 
3. 43 + 30 =
 
4. 73 + 10 =
 
5. 32 + 20 =
 
6. 86 + 10 =
 
7. 45 + 30 =
 
8. 84 + 20 =
 
9. 46 + 20 =
 
10. 51 + 20 =
 
Oefening 4
1. 74 + 20 =
 
2. 72 + 30 =
 
3. 46 + 20 =
 
4. 67 + 20 =
 
5. 41 + 30 =
 
6. 54 + 20 =
 
7. 53 + 50 =
 
8. 57 + 40 =
 
9. 13 + 50 =
 
10. 87 + 10 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Optellen
Oefening 1
1. 81 + 10 =
2. 41 + 30 =
3. 57 + 20 =
4. 56 + 20 =
5. 15 + 70 =
6. 64 + 30 =
7. 42 + 40 =
8. 44 + 20 =
9. 71 + 20 =
10. 24 + 10 =
Oefening 2
1. 31 + 50 =
2. 28 + 70 =
3. 42 + 20 =
4. 22 + 40 =
5. 53 + 10 =
6. 18 + 70 =
7. 36 + 60 =
8. 82 + 10 =
9. 65 + 20 =
10. 55 + 30 =
Oefening 3
1. 67 + 10 =
2. 48 + 20 =
3. 43 + 30 =
4. 73 + 10 =
5. 32 + 20 =
6. 86 + 10 =
7. 45 + 30 =
8. 84 + 20 =
9. 46 + 20 =
10. 51 + 20 =
Oefening 4
1. 74 + 20 =
2. 72 + 30 =
3. 46 + 20 =
4. 67 + 20 =
5. 41 + 30 =
6. 54 + 20 =
7. 53 + 50 =
8. 57 + 40 =
9. 13 + 50 =
10. 87 + 10 =