Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 48 + 2 =
 
2. 41 + 9 =
 
3. 68 + 2 =
 
4. 84 + 6 =
 
5. 35 + 5 =
 
6. 51 + 9 =
 
7. 95 + 5 =
 
8. 56 + 4 =
 
9. 66 + 4 =
 
10. 87 + 3 =
 
Oefening 2
1. 45 + 5 =
 
2. 44 + 6 =
 
3. 87 + 3 =
 
4. 23 + 7 =
 
5. 83 + 7 =
 
6. 64 + 6 =
 
7. 64 + 6 =
 
8. 32 + 8 =
 
9. 58 + 2 =
 
10. 88 + 2 =
 
Oefening 3
1. 82 + 8 =
 
2. 87 + 3 =
 
3. 24 + 6 =
 
4. 51 + 9 =
 
5. 58 + 2 =
 
6. 54 + 6 =
 
7. 57 + 3 =
 
8. 64 + 6 =
 
9. 34 + 6 =
 
10. 96 + 4 =
 
Oefening 4
1. 77 + 3 =
 
2. 84 + 6 =
 
3. 81 + 9 =
 
4. 71 + 9 =
 
5. 47 + 3 =
 
6. 65 + 5 =
 
7. 54 + 6 =
 
8. 93 + 7 =
 
9. 27 + 3 =
 
10. 82 + 8 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 48 + 2 =
2. 41 + 9 =
3. 68 + 2 =
4. 84 + 6 =
5. 35 + 5 =
6. 51 + 9 =
7. 95 + 5 =
8. 56 + 4 =
9. 66 + 4 =
10. 87 + 3 =
Oefening 2
1. 45 + 5 =
2. 44 + 6 =
3. 87 + 3 =
4. 23 + 7 =
5. 83 + 7 =
6. 64 + 6 =
7. 64 + 6 =
8. 32 + 8 =
9. 58 + 2 =
10. 88 + 2 =
Oefening 3
1. 82 + 8 =
2. 87 + 3 =
3. 24 + 6 =
4. 51 + 9 =
5. 58 + 2 =
6. 54 + 6 =
7. 57 + 3 =
8. 64 + 6 =
9. 34 + 6 =
10. 96 + 4 =
Oefening 4
1. 77 + 3 =
2. 84 + 6 =
3. 81 + 9 =
4. 71 + 9 =
5. 47 + 3 =
6. 65 + 5 =
7. 54 + 6 =
8. 93 + 7 =
9. 27 + 3 =
10. 82 + 8 =