Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 22 + 8 =
 
2. 52 + 8 =
 
3. 34 + 6 =
 
4. 82 + 8 =
 
5. 53 + 7 =
 
6. 24 + 6 =
 
7. 43 + 7 =
 
8. 38 + 2 =
 
9. 95 + 5 =
 
10. 82 + 8 =
 
Oefening 2
1. 97 + 3 =
 
2. 92 + 8 =
 
3. 32 + 8 =
 
4. 37 + 3 =
 
5. 48 + 2 =
 
6. 56 + 4 =
 
7. 13 + 7 =
 
8. 65 + 5 =
 
9. 45 + 5 =
 
10. 71 + 9 =
 
Oefening 3
1. 34 + 6 =
 
2. 44 + 6 =
 
3. 32 + 8 =
 
4. 82 + 8 =
 
5. 64 + 6 =
 
6. 38 + 2 =
 
7. 77 + 3 =
 
8. 14 + 6 =
 
9. 26 + 4 =
 
10. 18 + 2 =
 
Oefening 4
1. 46 + 4 =
 
2. 81 + 9 =
 
3. 84 + 6 =
 
4. 87 + 3 =
 
5. 31 + 9 =
 
6. 85 + 5 =
 
7. 42 + 8 =
 
8. 38 + 2 =
 
9. 97 + 3 =
 
10. 78 + 2 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 22 + 8 =
2. 52 + 8 =
3. 34 + 6 =
4. 82 + 8 =
5. 53 + 7 =
6. 24 + 6 =
7. 43 + 7 =
8. 38 + 2 =
9. 95 + 5 =
10. 82 + 8 =
Oefening 2
1. 97 + 3 =
2. 92 + 8 =
3. 32 + 8 =
4. 37 + 3 =
5. 48 + 2 =
6. 56 + 4 =
7. 13 + 7 =
8. 65 + 5 =
9. 45 + 5 =
10. 71 + 9 =
Oefening 3
1. 34 + 6 =
2. 44 + 6 =
3. 32 + 8 =
4. 82 + 8 =
5. 64 + 6 =
6. 38 + 2 =
7. 77 + 3 =
8. 14 + 6 =
9. 26 + 4 =
10. 18 + 2 =
Oefening 4
1. 46 + 4 =
2. 81 + 9 =
3. 84 + 6 =
4. 87 + 3 =
5. 31 + 9 =
6. 85 + 5 =
7. 42 + 8 =
8. 38 + 2 =
9. 97 + 3 =
10. 78 + 2 =