Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 36 + 4 =
 
2. 46 + 4 =
 
3. 63 + 7 =
 
4. 57 + 3 =
 
5. 63 + 7 =
 
6. 74 + 6 =
 
7. 38 + 2 =
 
8. 11 + 9 =
 
9. 51 + 9 =
 
10. 23 + 7 =
 
Oefening 2
1. 14 + 6 =
 
2. 16 + 4 =
 
3. 82 + 8 =
 
4. 76 + 4 =
 
5. 78 + 2 =
 
6. 86 + 4 =
 
7. 16 + 4 =
 
8. 27 + 3 =
 
9. 31 + 9 =
 
10. 86 + 4 =
 
Oefening 3
1. 51 + 9 =
 
2. 23 + 7 =
 
3. 93 + 7 =
 
4. 61 + 9 =
 
5. 53 + 7 =
 
6. 82 + 8 =
 
7. 31 + 9 =
 
8. 56 + 4 =
 
9. 57 + 3 =
 
10. 65 + 5 =
 
Oefening 4
1. 51 + 9 =
 
2. 47 + 3 =
 
3. 96 + 4 =
 
4. 78 + 2 =
 
5. 17 + 3 =
 
6. 12 + 8 =
 
7. 91 + 9 =
 
8. 92 + 8 =
 
9. 75 + 5 =
 
10. 84 + 6 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 36 + 4 =
2. 46 + 4 =
3. 63 + 7 =
4. 57 + 3 =
5. 63 + 7 =
6. 74 + 6 =
7. 38 + 2 =
8. 11 + 9 =
9. 51 + 9 =
10. 23 + 7 =
Oefening 2
1. 14 + 6 =
2. 16 + 4 =
3. 82 + 8 =
4. 76 + 4 =
5. 78 + 2 =
6. 86 + 4 =
7. 16 + 4 =
8. 27 + 3 =
9. 31 + 9 =
10. 86 + 4 =
Oefening 3
1. 51 + 9 =
2. 23 + 7 =
3. 93 + 7 =
4. 61 + 9 =
5. 53 + 7 =
6. 82 + 8 =
7. 31 + 9 =
8. 56 + 4 =
9. 57 + 3 =
10. 65 + 5 =
Oefening 4
1. 51 + 9 =
2. 47 + 3 =
3. 96 + 4 =
4. 78 + 2 =
5. 17 + 3 =
6. 12 + 8 =
7. 91 + 9 =
8. 92 + 8 =
9. 75 + 5 =
10. 84 + 6 =