Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 91 + 9 =
 
2. 35 + 5 =
 
3. 42 + 8 =
 
4. 61 + 9 =
 
5. 97 + 3 =
 
6. 44 + 6 =
 
7. 47 + 3 =
 
8. 74 + 6 =
 
9. 66 + 4 =
 
10. 24 + 6 =
 
Oefening 2
1. 87 + 3 =
 
2. 37 + 3 =
 
3. 68 + 2 =
 
4. 33 + 7 =
 
5. 77 + 3 =
 
6. 23 + 7 =
 
7. 33 + 7 =
 
8. 14 + 6 =
 
9. 22 + 8 =
 
10. 52 + 8 =
 
Oefening 3
1. 86 + 4 =
 
2. 65 + 5 =
 
3. 23 + 7 =
 
4. 25 + 5 =
 
5. 86 + 4 =
 
6. 77 + 3 =
 
7. 85 + 5 =
 
8. 82 + 8 =
 
9. 64 + 6 =
 
10. 95 + 5 =
 
Oefening 4
1. 84 + 6 =
 
2. 63 + 7 =
 
3. 64 + 6 =
 
4. 34 + 6 =
 
5. 16 + 4 =
 
6. 95 + 5 =
 
7. 98 + 2 =
 
8. 58 + 2 =
 
9. 46 + 4 =
 
10. 56 + 4 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 91 + 9 =
2. 35 + 5 =
3. 42 + 8 =
4. 61 + 9 =
5. 97 + 3 =
6. 44 + 6 =
7. 47 + 3 =
8. 74 + 6 =
9. 66 + 4 =
10. 24 + 6 =
Oefening 2
1. 87 + 3 =
2. 37 + 3 =
3. 68 + 2 =
4. 33 + 7 =
5. 77 + 3 =
6. 23 + 7 =
7. 33 + 7 =
8. 14 + 6 =
9. 22 + 8 =
10. 52 + 8 =
Oefening 3
1. 86 + 4 =
2. 65 + 5 =
3. 23 + 7 =
4. 25 + 5 =
5. 86 + 4 =
6. 77 + 3 =
7. 85 + 5 =
8. 82 + 8 =
9. 64 + 6 =
10. 95 + 5 =
Oefening 4
1. 84 + 6 =
2. 63 + 7 =
3. 64 + 6 =
4. 34 + 6 =
5. 16 + 4 =
6. 95 + 5 =
7. 98 + 2 =
8. 58 + 2 =
9. 46 + 4 =
10. 56 + 4 =