Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 46 + 4 =
 
2. 61 + 9 =
 
3. 82 + 8 =
 
4. 92 + 8 =
 
5. 81 + 9 =
 
6. 73 + 7 =
 
7. 81 + 9 =
 
8. 95 + 5 =
 
9. 57 + 3 =
 
10. 44 + 6 =
 
Oefening 2
1. 37 + 3 =
 
2. 27 + 3 =
 
3. 36 + 4 =
 
4. 47 + 3 =
 
5. 12 + 8 =
 
6. 71 + 9 =
 
7. 11 + 9 =
 
8. 23 + 7 =
 
9. 55 + 5 =
 
10. 33 + 7 =
 
Oefening 3
1. 18 + 2 =
 
2. 28 + 2 =
 
3. 61 + 9 =
 
4. 66 + 4 =
 
5. 24 + 6 =
 
6. 74 + 6 =
 
7. 56 + 4 =
 
8. 91 + 9 =
 
9. 18 + 2 =
 
10. 52 + 8 =
 
Oefening 4
1. 24 + 6 =
 
2. 67 + 3 =
 
3. 55 + 5 =
 
4. 38 + 2 =
 
5. 95 + 5 =
 
6. 23 + 7 =
 
7. 43 + 7 =
 
8. 33 + 7 =
 
9. 55 + 5 =
 
10. 84 + 6 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 46 + 4 =
2. 61 + 9 =
3. 82 + 8 =
4. 92 + 8 =
5. 81 + 9 =
6. 73 + 7 =
7. 81 + 9 =
8. 95 + 5 =
9. 57 + 3 =
10. 44 + 6 =
Oefening 2
1. 37 + 3 =
2. 27 + 3 =
3. 36 + 4 =
4. 47 + 3 =
5. 12 + 8 =
6. 71 + 9 =
7. 11 + 9 =
8. 23 + 7 =
9. 55 + 5 =
10. 33 + 7 =
Oefening 3
1. 18 + 2 =
2. 28 + 2 =
3. 61 + 9 =
4. 66 + 4 =
5. 24 + 6 =
6. 74 + 6 =
7. 56 + 4 =
8. 91 + 9 =
9. 18 + 2 =
10. 52 + 8 =
Oefening 4
1. 24 + 6 =
2. 67 + 3 =
3. 55 + 5 =
4. 38 + 2 =
5. 95 + 5 =
6. 23 + 7 =
7. 43 + 7 =
8. 33 + 7 =
9. 55 + 5 =
10. 84 + 6 =