Tientallen/eenheden plus tientallen

Erbijsommen
Oefening 1
1. 55 + 30 =
 
2. 16 + 20 =
 
3. 47 + 50 =
 
4. 38 + 40 =
 
5. 42 + 50 =
 
6. 86 + 10 =
 
7. 43 + 50 =
 
8. 53 + 30 =
 
9. 33 + 40 =
 
10. 85 + 20 =
 
Oefening 2
1. 68 + 20 =
 
2. 27 + 60 =
 
3. 32 + 20 =
 
4. 55 + 30 =
 
5. 16 + 40 =
 
6. 43 + 60 =
 
7. 16 + 50 =
 
8. 16 + 80 =
 
9. 83 + 20 =
 
10. 12 + 80 =
 
Oefening 3
1. 45 + 40 =
 
2. 81 + 10 =
 
3. 11 + 40 =
 
4. 21 + 70 =
 
5. 73 + 10 =
 
6. 56 + 30 =
 
7. 31 + 70 =
 
8. 83 + 20 =
 
9. 12 + 60 =
 
10. 36 + 20 =
 
Oefening 4
1. 83 + 10 =
 
2. 33 + 50 =
 
3. 21 + 40 =
 
4. 22 + 50 =
 
5. 36 + 40 =
 
6. 23 + 50 =
 
7. 18 + 30 =
 
8. 34 + 30 =
 
9. 16 + 50 =
 
10. 53 + 30 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 55 + 30 =
2. 16 + 20 =
3. 47 + 50 =
4. 38 + 40 =
5. 42 + 50 =
6. 86 + 10 =
7. 43 + 50 =
8. 53 + 30 =
9. 33 + 40 =
10. 85 + 20 =
Oefening 2
1. 68 + 20 =
2. 27 + 60 =
3. 32 + 20 =
4. 55 + 30 =
5. 16 + 40 =
6. 43 + 60 =
7. 16 + 50 =
8. 16 + 80 =
9. 83 + 20 =
10. 12 + 80 =
Oefening 3
1. 45 + 40 =
2. 81 + 10 =
3. 11 + 40 =
4. 21 + 70 =
5. 73 + 10 =
6. 56 + 30 =
7. 31 + 70 =
8. 83 + 20 =
9. 12 + 60 =
10. 36 + 20 =
Oefening 4
1. 83 + 10 =
2. 33 + 50 =
3. 21 + 40 =
4. 22 + 50 =
5. 36 + 40 =
6. 23 + 50 =
7. 18 + 30 =
8. 34 + 30 =
9. 16 + 50 =
10. 53 + 30 =