Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 27 + 3 =
 
2. 77 + 3 =
 
3. 51 + 9 =
 
4. 86 + 4 =
 
5. 57 + 3 =
 
6. 76 + 4 =
 
7. 41 + 9 =
 
8. 72 + 8 =
 
9. 28 + 2 =
 
10. 94 + 6 =
 
Oefening 2
1. 28 + 2 =
 
2. 38 + 2 =
 
3. 81 + 9 =
 
4. 42 + 8 =
 
5. 95 + 5 =
 
6. 26 + 4 =
 
7. 61 + 9 =
 
8. 53 + 7 =
 
9. 68 + 2 =
 
10. 57 + 3 =
 
Oefening 3
1. 27 + 3 =
 
2. 96 + 4 =
 
3. 54 + 6 =
 
4. 88 + 2 =
 
5. 13 + 7 =
 
6. 85 + 5 =
 
7. 32 + 8 =
 
8. 55 + 5 =
 
9. 71 + 9 =
 
10. 12 + 8 =
 
Oefening 4
1. 18 + 2 =
 
2. 77 + 3 =
 
3. 66 + 4 =
 
4. 33 + 7 =
 
5. 94 + 6 =
 
6. 81 + 9 =
 
7. 76 + 4 =
 
8. 42 + 8 =
 
9. 91 + 9 =
 
10. 44 + 6 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 27 + 3 =
2. 77 + 3 =
3. 51 + 9 =
4. 86 + 4 =
5. 57 + 3 =
6. 76 + 4 =
7. 41 + 9 =
8. 72 + 8 =
9. 28 + 2 =
10. 94 + 6 =
Oefening 2
1. 28 + 2 =
2. 38 + 2 =
3. 81 + 9 =
4. 42 + 8 =
5. 95 + 5 =
6. 26 + 4 =
7. 61 + 9 =
8. 53 + 7 =
9. 68 + 2 =
10. 57 + 3 =
Oefening 3
1. 27 + 3 =
2. 96 + 4 =
3. 54 + 6 =
4. 88 + 2 =
5. 13 + 7 =
6. 85 + 5 =
7. 32 + 8 =
8. 55 + 5 =
9. 71 + 9 =
10. 12 + 8 =
Oefening 4
1. 18 + 2 =
2. 77 + 3 =
3. 66 + 4 =
4. 33 + 7 =
5. 94 + 6 =
6. 81 + 9 =
7. 76 + 4 =
8. 42 + 8 =
9. 91 + 9 =
10. 44 + 6 =