Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 44 + 6 =
 
2. 28 + 2 =
 
3. 76 + 4 =
 
4. 25 + 5 =
 
5. 12 + 8 =
 
6. 65 + 5 =
 
7. 23 + 7 =
 
8. 25 + 5 =
 
9. 42 + 8 =
 
10. 76 + 4 =
 
Oefening 2
1. 78 + 2 =
 
2. 54 + 6 =
 
3. 28 + 2 =
 
4. 27 + 3 =
 
5. 64 + 6 =
 
6. 51 + 9 =
 
7. 76 + 4 =
 
8. 32 + 8 =
 
9. 28 + 2 =
 
10. 17 + 3 =
 
Oefening 3
1. 12 + 8 =
 
2. 15 + 5 =
 
3. 93 + 7 =
 
4. 43 + 7 =
 
5. 77 + 3 =
 
6. 96 + 4 =
 
7. 97 + 3 =
 
8. 98 + 2 =
 
9. 26 + 4 =
 
10. 11 + 9 =
 
Oefening 4
1. 86 + 4 =
 
2. 61 + 9 =
 
3. 82 + 8 =
 
4. 63 + 7 =
 
5. 18 + 2 =
 
6. 77 + 3 =
 
7. 36 + 4 =
 
8. 68 + 2 =
 
9. 35 + 5 =
 
10. 83 + 7 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 44 + 6 =
2. 28 + 2 =
3. 76 + 4 =
4. 25 + 5 =
5. 12 + 8 =
6. 65 + 5 =
7. 23 + 7 =
8. 25 + 5 =
9. 42 + 8 =
10. 76 + 4 =
Oefening 2
1. 78 + 2 =
2. 54 + 6 =
3. 28 + 2 =
4. 27 + 3 =
5. 64 + 6 =
6. 51 + 9 =
7. 76 + 4 =
8. 32 + 8 =
9. 28 + 2 =
10. 17 + 3 =
Oefening 3
1. 12 + 8 =
2. 15 + 5 =
3. 93 + 7 =
4. 43 + 7 =
5. 77 + 3 =
6. 96 + 4 =
7. 97 + 3 =
8. 98 + 2 =
9. 26 + 4 =
10. 11 + 9 =
Oefening 4
1. 86 + 4 =
2. 61 + 9 =
3. 82 + 8 =
4. 63 + 7 =
5. 18 + 2 =
6. 77 + 3 =
7. 36 + 4 =
8. 68 + 2 =
9. 35 + 5 =
10. 83 + 7 =