Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 66 + 4 =
 
2. 94 + 6 =
 
3. 36 + 4 =
 
4. 67 + 3 =
 
5. 24 + 6 =
 
6. 58 + 2 =
 
7. 58 + 2 =
 
8. 57 + 3 =
 
9. 72 + 8 =
 
10. 34 + 6 =
 
Oefening 2
1. 85 + 5 =
 
2. 54 + 6 =
 
3. 63 + 7 =
 
4. 18 + 2 =
 
5. 71 + 9 =
 
6. 55 + 5 =
 
7. 18 + 2 =
 
8. 51 + 9 =
 
9. 38 + 2 =
 
10. 22 + 8 =
 
Oefening 3
1. 53 + 7 =
 
2. 76 + 4 =
 
3. 84 + 6 =
 
4. 44 + 6 =
 
5. 64 + 6 =
 
6. 13 + 7 =
 
7. 45 + 5 =
 
8. 86 + 4 =
 
9. 12 + 8 =
 
10. 15 + 5 =
 
Oefening 4
1. 31 + 9 =
 
2. 98 + 2 =
 
3. 56 + 4 =
 
4. 64 + 6 =
 
5. 17 + 3 =
 
6. 27 + 3 =
 
7. 34 + 6 =
 
8. 68 + 2 =
 
9. 43 + 7 =
 
10. 51 + 9 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 66 + 4 =
2. 94 + 6 =
3. 36 + 4 =
4. 67 + 3 =
5. 24 + 6 =
6. 58 + 2 =
7. 58 + 2 =
8. 57 + 3 =
9. 72 + 8 =
10. 34 + 6 =
Oefening 2
1. 85 + 5 =
2. 54 + 6 =
3. 63 + 7 =
4. 18 + 2 =
5. 71 + 9 =
6. 55 + 5 =
7. 18 + 2 =
8. 51 + 9 =
9. 38 + 2 =
10. 22 + 8 =
Oefening 3
1. 53 + 7 =
2. 76 + 4 =
3. 84 + 6 =
4. 44 + 6 =
5. 64 + 6 =
6. 13 + 7 =
7. 45 + 5 =
8. 86 + 4 =
9. 12 + 8 =
10. 15 + 5 =
Oefening 4
1. 31 + 9 =
2. 98 + 2 =
3. 56 + 4 =
4. 64 + 6 =
5. 17 + 3 =
6. 27 + 3 =
7. 34 + 6 =
8. 68 + 2 =
9. 43 + 7 =
10. 51 + 9 =