Tientallen/eenheden plus tientallen

Erbijsommen
Oefening 1
1. 66 + 20 =
 
2. 31 + 30 =
 
3. 57 + 30 =
 
4. 88 + 10 =
 
5. 76 + 20 =
 
6. 23 + 10 =
 
7. 71 + 20 =
 
8. 65 + 30 =
 
9. 85 + 20 =
 
10. 56 + 30 =
 
Oefening 2
1. 33 + 10 =
 
2. 35 + 30 =
 
3. 43 + 30 =
 
4. 85 + 10 =
 
5. 27 + 40 =
 
6. 72 + 20 =
 
7. 83 + 20 =
 
8. 17 + 30 =
 
9. 62 + 30 =
 
10. 62 + 30 =
 
Oefening 3
1. 54 + 10 =
 
2. 68 + 30 =
 
3. 57 + 40 =
 
4. 83 + 10 =
 
5. 54 + 40 =
 
6. 85 + 10 =
 
7. 32 + 10 =
 
8. 53 + 30 =
 
9. 26 + 20 =
 
10. 11 + 50 =
 
Oefening 4
1. 67 + 30 =
 
2. 78 + 10 =
 
3. 41 + 20 =
 
4. 74 + 10 =
 
5. 32 + 60 =
 
6. 13 + 60 =
 
7. 65 + 30 =
 
8. 42 + 40 =
 
9. 38 + 40 =
 
10. 83 + 10 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 66 + 20 =
2. 31 + 30 =
3. 57 + 30 =
4. 88 + 10 =
5. 76 + 20 =
6. 23 + 10 =
7. 71 + 20 =
8. 65 + 30 =
9. 85 + 20 =
10. 56 + 30 =
Oefening 2
1. 33 + 10 =
2. 35 + 30 =
3. 43 + 30 =
4. 85 + 10 =
5. 27 + 40 =
6. 72 + 20 =
7. 83 + 20 =
8. 17 + 30 =
9. 62 + 30 =
10. 62 + 30 =
Oefening 3
1. 54 + 10 =
2. 68 + 30 =
3. 57 + 40 =
4. 83 + 10 =
5. 54 + 40 =
6. 85 + 10 =
7. 32 + 10 =
8. 53 + 30 =
9. 26 + 20 =
10. 11 + 50 =
Oefening 4
1. 67 + 30 =
2. 78 + 10 =
3. 41 + 20 =
4. 74 + 10 =
5. 32 + 60 =
6. 13 + 60 =
7. 65 + 30 =
8. 42 + 40 =
9. 38 + 40 =
10. 83 + 10 =