Tientallen/eenheden plus tientallen

Optellen
Oefening 1
1. 72 + 30 =
 
2. 44 + 10 =
 
3. 72 + 20 =
 
4. 44 + 20 =
 
5. 82 + 10 =
 
6. 45 + 50 =
 
7. 65 + 20 =
 
8. 43 + 40 =
 
9. 68 + 20 =
 
10. 62 + 10 =
 
Oefening 2
1. 21 + 50 =
 
2. 76 + 20 =
 
3. 45 + 30 =
 
4. 28 + 50 =
 
5. 85 + 10 =
 
6. 41 + 60 =
 
7. 38 + 20 =
 
8. 57 + 20 =
 
9. 76 + 20 =
 
10. 83 + 20 =
 
Oefening 3
1. 26 + 50 =
 
2. 37 + 10 =
 
3. 75 + 30 =
 
4. 18 + 40 =
 
5. 73 + 20 =
 
6. 55 + 30 =
 
7. 78 + 20 =
 
8. 35 + 60 =
 
9. 76 + 10 =
 
10. 51 + 30 =
 
Oefening 4
1. 85 + 20 =
 
2. 18 + 60 =
 
3. 48 + 50 =
 
4. 68 + 20 =
 
5. 45 + 10 =
 
6. 22 + 20 =
 
7. 35 + 40 =
 
8. 57 + 10 =
 
9. 87 + 10 =
 
10. 81 + 20 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Optellen
Oefening 1
1. 72 + 30 =
2. 44 + 10 =
3. 72 + 20 =
4. 44 + 20 =
5. 82 + 10 =
6. 45 + 50 =
7. 65 + 20 =
8. 43 + 40 =
9. 68 + 20 =
10. 62 + 10 =
Oefening 2
1. 21 + 50 =
2. 76 + 20 =
3. 45 + 30 =
4. 28 + 50 =
5. 85 + 10 =
6. 41 + 60 =
7. 38 + 20 =
8. 57 + 20 =
9. 76 + 20 =
10. 83 + 20 =
Oefening 3
1. 26 + 50 =
2. 37 + 10 =
3. 75 + 30 =
4. 18 + 40 =
5. 73 + 20 =
6. 55 + 30 =
7. 78 + 20 =
8. 35 + 60 =
9. 76 + 10 =
10. 51 + 30 =
Oefening 4
1. 85 + 20 =
2. 18 + 60 =
3. 48 + 50 =
4. 68 + 20 =
5. 45 + 10 =
6. 22 + 20 =
7. 35 + 40 =
8. 57 + 10 =
9. 87 + 10 =
10. 81 + 20 =