Tientallen/eenheden plus tientallen

Erbijsommen
Oefening 1
1. 77 + 10 =
 
2. 41 + 60 =
 
3. 43 + 40 =
 
4. 45 + 20 =
 
5. 12 + 70 =
 
6. 72 + 20 =
 
7. 18 + 60 =
 
8. 58 + 30 =
 
9. 56 + 30 =
 
10. 85 + 10 =
 
Oefening 2
1. 64 + 10 =
 
2. 24 + 30 =
 
3. 86 + 10 =
 
4. 47 + 30 =
 
5. 74 + 20 =
 
6. 47 + 20 =
 
7. 61 + 30 =
 
8. 82 + 10 =
 
9. 52 + 50 =
 
10. 83 + 20 =
 
Oefening 3
1. 44 + 50 =
 
2. 27 + 40 =
 
3. 54 + 40 =
 
4. 14 + 30 =
 
5. 84 + 10 =
 
6. 34 + 30 =
 
7. 28 + 20 =
 
8. 72 + 10 =
 
9. 17 + 50 =
 
10. 84 + 10 =
 
Oefening 4
1. 46 + 30 =
 
2. 82 + 20 =
 
3. 65 + 30 =
 
4. 25 + 70 =
 
5. 82 + 20 =
 
6. 56 + 20 =
 
7. 16 + 30 =
 
8. 11 + 90 =
 
9. 81 + 10 =
 
10. 83 + 20 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 77 + 10 =
2. 41 + 60 =
3. 43 + 40 =
4. 45 + 20 =
5. 12 + 70 =
6. 72 + 20 =
7. 18 + 60 =
8. 58 + 30 =
9. 56 + 30 =
10. 85 + 10 =
Oefening 2
1. 64 + 10 =
2. 24 + 30 =
3. 86 + 10 =
4. 47 + 30 =
5. 74 + 20 =
6. 47 + 20 =
7. 61 + 30 =
8. 82 + 10 =
9. 52 + 50 =
10. 83 + 20 =
Oefening 3
1. 44 + 50 =
2. 27 + 40 =
3. 54 + 40 =
4. 14 + 30 =
5. 84 + 10 =
6. 34 + 30 =
7. 28 + 20 =
8. 72 + 10 =
9. 17 + 50 =
10. 84 + 10 =
Oefening 4
1. 46 + 30 =
2. 82 + 20 =
3. 65 + 30 =
4. 25 + 70 =
5. 82 + 20 =
6. 56 + 20 =
7. 16 + 30 =
8. 11 + 90 =
9. 81 + 10 =
10. 83 + 20 =