Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 71 + 9 =
 
2. 21 + 9 =
 
3. 96 + 4 =
 
4. 15 + 5 =
 
5. 92 + 8 =
 
6. 51 + 9 =
 
7. 88 + 2 =
 
8. 25 + 5 =
 
9. 96 + 4 =
 
10. 94 + 6 =
 
Oefening 2
1. 15 + 5 =
 
2. 56 + 4 =
 
3. 76 + 4 =
 
4. 35 + 5 =
 
5. 34 + 6 =
 
6. 37 + 3 =
 
7. 35 + 5 =
 
8. 78 + 2 =
 
9. 15 + 5 =
 
10. 93 + 7 =
 
Oefening 3
1. 63 + 7 =
 
2. 92 + 8 =
 
3. 11 + 9 =
 
4. 36 + 4 =
 
5. 41 + 9 =
 
6. 13 + 7 =
 
7. 24 + 6 =
 
8. 86 + 4 =
 
9. 36 + 4 =
 
10. 22 + 8 =
 
Oefening 4
1. 21 + 9 =
 
2. 71 + 9 =
 
3. 22 + 8 =
 
4. 37 + 3 =
 
5. 85 + 5 =
 
6. 13 + 7 =
 
7. 21 + 9 =
 
8. 38 + 2 =
 
9. 53 + 7 =
 
10. 27 + 3 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 71 + 9 =
2. 21 + 9 =
3. 96 + 4 =
4. 15 + 5 =
5. 92 + 8 =
6. 51 + 9 =
7. 88 + 2 =
8. 25 + 5 =
9. 96 + 4 =
10. 94 + 6 =
Oefening 2
1. 15 + 5 =
2. 56 + 4 =
3. 76 + 4 =
4. 35 + 5 =
5. 34 + 6 =
6. 37 + 3 =
7. 35 + 5 =
8. 78 + 2 =
9. 15 + 5 =
10. 93 + 7 =
Oefening 3
1. 63 + 7 =
2. 92 + 8 =
3. 11 + 9 =
4. 36 + 4 =
5. 41 + 9 =
6. 13 + 7 =
7. 24 + 6 =
8. 86 + 4 =
9. 36 + 4 =
10. 22 + 8 =
Oefening 4
1. 21 + 9 =
2. 71 + 9 =
3. 22 + 8 =
4. 37 + 3 =
5. 85 + 5 =
6. 13 + 7 =
7. 21 + 9 =
8. 38 + 2 =
9. 53 + 7 =
10. 27 + 3 =