Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 36 + 4 =
 
2. 67 + 3 =
 
3. 48 + 2 =
 
4. 57 + 3 =
 
5. 43 + 7 =
 
6. 87 + 3 =
 
7. 53 + 7 =
 
8. 71 + 9 =
 
9. 96 + 4 =
 
10. 73 + 7 =
 
Oefening 2
1. 63 + 7 =
 
2. 44 + 6 =
 
3. 81 + 9 =
 
4. 61 + 9 =
 
5. 68 + 2 =
 
6. 56 + 4 =
 
7. 96 + 4 =
 
8. 65 + 5 =
 
9. 45 + 5 =
 
10. 36 + 4 =
 
Oefening 3
1. 55 + 5 =
 
2. 42 + 8 =
 
3. 46 + 4 =
 
4. 22 + 8 =
 
5. 15 + 5 =
 
6. 58 + 2 =
 
7. 55 + 5 =
 
8. 56 + 4 =
 
9. 73 + 7 =
 
10. 12 + 8 =
 
Oefening 4
1. 82 + 8 =
 
2. 42 + 8 =
 
3. 77 + 3 =
 
4. 38 + 2 =
 
5. 33 + 7 =
 
6. 63 + 7 =
 
7. 61 + 9 =
 
8. 25 + 5 =
 
9. 78 + 2 =
 
10. 43 + 7 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 36 + 4 =
2. 67 + 3 =
3. 48 + 2 =
4. 57 + 3 =
5. 43 + 7 =
6. 87 + 3 =
7. 53 + 7 =
8. 71 + 9 =
9. 96 + 4 =
10. 73 + 7 =
Oefening 2
1. 63 + 7 =
2. 44 + 6 =
3. 81 + 9 =
4. 61 + 9 =
5. 68 + 2 =
6. 56 + 4 =
7. 96 + 4 =
8. 65 + 5 =
9. 45 + 5 =
10. 36 + 4 =
Oefening 3
1. 55 + 5 =
2. 42 + 8 =
3. 46 + 4 =
4. 22 + 8 =
5. 15 + 5 =
6. 58 + 2 =
7. 55 + 5 =
8. 56 + 4 =
9. 73 + 7 =
10. 12 + 8 =
Oefening 4
1. 82 + 8 =
2. 42 + 8 =
3. 77 + 3 =
4. 38 + 2 =
5. 33 + 7 =
6. 63 + 7 =
7. 61 + 9 =
8. 25 + 5 =
9. 78 + 2 =
10. 43 + 7 =