Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 37 + 3 =
 
2. 47 + 3 =
 
3. 46 + 4 =
 
4. 34 + 6 =
 
5. 78 + 2 =
 
6. 62 + 8 =
 
7. 78 + 2 =
 
8. 37 + 3 =
 
9. 41 + 9 =
 
10. 37 + 3 =
 
Oefening 2
1. 34 + 6 =
 
2. 71 + 9 =
 
3. 27 + 3 =
 
4. 67 + 3 =
 
5. 74 + 6 =
 
6. 16 + 4 =
 
7. 23 + 7 =
 
8. 44 + 6 =
 
9. 55 + 5 =
 
10. 98 + 2 =
 
Oefening 3
1. 91 + 9 =
 
2. 32 + 8 =
 
3. 83 + 7 =
 
4. 26 + 4 =
 
5. 91 + 9 =
 
6. 58 + 2 =
 
7. 24 + 6 =
 
8. 88 + 2 =
 
9. 84 + 6 =
 
10. 36 + 4 =
 
Oefening 4
1. 54 + 6 =
 
2. 15 + 5 =
 
3. 91 + 9 =
 
4. 63 + 7 =
 
5. 87 + 3 =
 
6. 21 + 9 =
 
7. 98 + 2 =
 
8. 85 + 5 =
 
9. 86 + 4 =
 
10. 32 + 8 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 37 + 3 =
2. 47 + 3 =
3. 46 + 4 =
4. 34 + 6 =
5. 78 + 2 =
6. 62 + 8 =
7. 78 + 2 =
8. 37 + 3 =
9. 41 + 9 =
10. 37 + 3 =
Oefening 2
1. 34 + 6 =
2. 71 + 9 =
3. 27 + 3 =
4. 67 + 3 =
5. 74 + 6 =
6. 16 + 4 =
7. 23 + 7 =
8. 44 + 6 =
9. 55 + 5 =
10. 98 + 2 =
Oefening 3
1. 91 + 9 =
2. 32 + 8 =
3. 83 + 7 =
4. 26 + 4 =
5. 91 + 9 =
6. 58 + 2 =
7. 24 + 6 =
8. 88 + 2 =
9. 84 + 6 =
10. 36 + 4 =
Oefening 4
1. 54 + 6 =
2. 15 + 5 =
3. 91 + 9 =
4. 63 + 7 =
5. 87 + 3 =
6. 21 + 9 =
7. 98 + 2 =
8. 85 + 5 =
9. 86 + 4 =
10. 32 + 8 =