Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 45 + 5 =
 
2. 85 + 5 =
 
3. 23 + 7 =
 
4. 76 + 4 =
 
5. 44 + 6 =
 
6. 62 + 8 =
 
7. 96 + 4 =
 
8. 75 + 5 =
 
9. 47 + 3 =
 
10. 72 + 8 =
 
Oefening 2
1. 23 + 7 =
 
2. 14 + 6 =
 
3. 28 + 2 =
 
4. 16 + 4 =
 
5. 67 + 3 =
 
6. 21 + 9 =
 
7. 62 + 8 =
 
8. 26 + 4 =
 
9. 77 + 3 =
 
10. 23 + 7 =
 
Oefening 3
1. 41 + 9 =
 
2. 37 + 3 =
 
3. 25 + 5 =
 
4. 65 + 5 =
 
5. 33 + 7 =
 
6. 22 + 8 =
 
7. 41 + 9 =
 
8. 43 + 7 =
 
9. 42 + 8 =
 
10. 26 + 4 =
 
Oefening 4
1. 24 + 6 =
 
2. 58 + 2 =
 
3. 53 + 7 =
 
4. 44 + 6 =
 
5. 74 + 6 =
 
6. 66 + 4 =
 
7. 66 + 4 =
 
8. 26 + 4 =
 
9. 43 + 7 =
 
10. 76 + 4 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 45 + 5 =
2. 85 + 5 =
3. 23 + 7 =
4. 76 + 4 =
5. 44 + 6 =
6. 62 + 8 =
7. 96 + 4 =
8. 75 + 5 =
9. 47 + 3 =
10. 72 + 8 =
Oefening 2
1. 23 + 7 =
2. 14 + 6 =
3. 28 + 2 =
4. 16 + 4 =
5. 67 + 3 =
6. 21 + 9 =
7. 62 + 8 =
8. 26 + 4 =
9. 77 + 3 =
10. 23 + 7 =
Oefening 3
1. 41 + 9 =
2. 37 + 3 =
3. 25 + 5 =
4. 65 + 5 =
5. 33 + 7 =
6. 22 + 8 =
7. 41 + 9 =
8. 43 + 7 =
9. 42 + 8 =
10. 26 + 4 =
Oefening 4
1. 24 + 6 =
2. 58 + 2 =
3. 53 + 7 =
4. 44 + 6 =
5. 74 + 6 =
6. 66 + 4 =
7. 66 + 4 =
8. 26 + 4 =
9. 43 + 7 =
10. 76 + 4 =