Tientallen/eenheden plus tientallen

Erbijsommen
Oefening 1
1. 35 + 30 =
 
2. 56 + 40 =
 
3. 61 + 10 =
 
4. 82 + 10 =
 
5. 68 + 20 =
 
6. 63 + 20 =
 
7. 31 + 70 =
 
8. 18 + 10 =
 
9. 85 + 10 =
 
10. 15 + 30 =
 
Oefening 2
1. 22 + 30 =
 
2. 31 + 50 =
 
3. 38 + 60 =
 
4. 22 + 70 =
 
5. 23 + 60 =
 
6. 66 + 20 =
 
7. 48 + 40 =
 
8. 25 + 70 =
 
9. 83 + 10 =
 
10. 48 + 50 =
 
Oefening 3
1. 71 + 30 =
 
2. 85 + 10 =
 
3. 31 + 40 =
 
4. 71 + 20 =
 
5. 11 + 50 =
 
6. 78 + 20 =
 
7. 81 + 20 =
 
8. 61 + 20 =
 
9. 38 + 40 =
 
10. 37 + 20 =
 
Oefening 4
1. 51 + 50 =
 
2. 35 + 50 =
 
3. 87 + 10 =
 
4. 22 + 30 =
 
5. 67 + 20 =
 
6. 82 + 10 =
 
7. 55 + 10 =
 
8. 33 + 30 =
 
9. 17 + 80 =
 
10. 76 + 10 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 35 + 30 =
2. 56 + 40 =
3. 61 + 10 =
4. 82 + 10 =
5. 68 + 20 =
6. 63 + 20 =
7. 31 + 70 =
8. 18 + 10 =
9. 85 + 10 =
10. 15 + 30 =
Oefening 2
1. 22 + 30 =
2. 31 + 50 =
3. 38 + 60 =
4. 22 + 70 =
5. 23 + 60 =
6. 66 + 20 =
7. 48 + 40 =
8. 25 + 70 =
9. 83 + 10 =
10. 48 + 50 =
Oefening 3
1. 71 + 30 =
2. 85 + 10 =
3. 31 + 40 =
4. 71 + 20 =
5. 11 + 50 =
6. 78 + 20 =
7. 81 + 20 =
8. 61 + 20 =
9. 38 + 40 =
10. 37 + 20 =
Oefening 4
1. 51 + 50 =
2. 35 + 50 =
3. 87 + 10 =
4. 22 + 30 =
5. 67 + 20 =
6. 82 + 10 =
7. 55 + 10 =
8. 33 + 30 =
9. 17 + 80 =
10. 76 + 10 =