Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 97 + 3 =
 
2. 37 + 3 =
 
3. 14 + 6 =
 
4. 42 + 8 =
 
5. 54 + 6 =
 
6. 92 + 8 =
 
7. 28 + 2 =
 
8. 91 + 9 =
 
9. 33 + 7 =
 
10. 82 + 8 =
 
Oefening 2
1. 57 + 3 =
 
2. 46 + 4 =
 
3. 78 + 2 =
 
4. 42 + 8 =
 
5. 45 + 5 =
 
6. 67 + 3 =
 
7. 93 + 7 =
 
8. 87 + 3 =
 
9. 82 + 8 =
 
10. 36 + 4 =
 
Oefening 3
1. 28 + 2 =
 
2. 12 + 8 =
 
3. 11 + 9 =
 
4. 14 + 6 =
 
5. 26 + 4 =
 
6. 97 + 3 =
 
7. 68 + 2 =
 
8. 91 + 9 =
 
9. 13 + 7 =
 
10. 35 + 5 =
 
Oefening 4
1. 34 + 6 =
 
2. 11 + 9 =
 
3. 61 + 9 =
 
4. 15 + 5 =
 
5. 68 + 2 =
 
6. 57 + 3 =
 
7. 27 + 3 =
 
8. 66 + 4 =
 
9. 17 + 3 =
 
10. 64 + 6 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 97 + 3 =
2. 37 + 3 =
3. 14 + 6 =
4. 42 + 8 =
5. 54 + 6 =
6. 92 + 8 =
7. 28 + 2 =
8. 91 + 9 =
9. 33 + 7 =
10. 82 + 8 =
Oefening 2
1. 57 + 3 =
2. 46 + 4 =
3. 78 + 2 =
4. 42 + 8 =
5. 45 + 5 =
6. 67 + 3 =
7. 93 + 7 =
8. 87 + 3 =
9. 82 + 8 =
10. 36 + 4 =
Oefening 3
1. 28 + 2 =
2. 12 + 8 =
3. 11 + 9 =
4. 14 + 6 =
5. 26 + 4 =
6. 97 + 3 =
7. 68 + 2 =
8. 91 + 9 =
9. 13 + 7 =
10. 35 + 5 =
Oefening 4
1. 34 + 6 =
2. 11 + 9 =
3. 61 + 9 =
4. 15 + 5 =
5. 68 + 2 =
6. 57 + 3 =
7. 27 + 3 =
8. 66 + 4 =
9. 17 + 3 =
10. 64 + 6 =