Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 54 + 6 =
 
2. 27 + 3 =
 
3. 53 + 7 =
 
4. 73 + 7 =
 
5. 47 + 3 =
 
6. 68 + 2 =
 
7. 25 + 5 =
 
8. 91 + 9 =
 
9. 25 + 5 =
 
10. 47 + 3 =
 
Oefening 2
1. 76 + 4 =
 
2. 33 + 7 =
 
3. 34 + 6 =
 
4. 81 + 9 =
 
5. 71 + 9 =
 
6. 67 + 3 =
 
7. 92 + 8 =
 
8. 28 + 2 =
 
9. 42 + 8 =
 
10. 71 + 9 =
 
Oefening 3
1. 81 + 9 =
 
2. 77 + 3 =
 
3. 17 + 3 =
 
4. 16 + 4 =
 
5. 97 + 3 =
 
6. 57 + 3 =
 
7. 67 + 3 =
 
8. 81 + 9 =
 
9. 38 + 2 =
 
10. 98 + 2 =
 
Oefening 4
1. 57 + 3 =
 
2. 63 + 7 =
 
3. 38 + 2 =
 
4. 53 + 7 =
 
5. 63 + 7 =
 
6. 35 + 5 =
 
7. 57 + 3 =
 
8. 23 + 7 =
 
9. 14 + 6 =
 
10. 13 + 7 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 54 + 6 =
2. 27 + 3 =
3. 53 + 7 =
4. 73 + 7 =
5. 47 + 3 =
6. 68 + 2 =
7. 25 + 5 =
8. 91 + 9 =
9. 25 + 5 =
10. 47 + 3 =
Oefening 2
1. 76 + 4 =
2. 33 + 7 =
3. 34 + 6 =
4. 81 + 9 =
5. 71 + 9 =
6. 67 + 3 =
7. 92 + 8 =
8. 28 + 2 =
9. 42 + 8 =
10. 71 + 9 =
Oefening 3
1. 81 + 9 =
2. 77 + 3 =
3. 17 + 3 =
4. 16 + 4 =
5. 97 + 3 =
6. 57 + 3 =
7. 67 + 3 =
8. 81 + 9 =
9. 38 + 2 =
10. 98 + 2 =
Oefening 4
1. 57 + 3 =
2. 63 + 7 =
3. 38 + 2 =
4. 53 + 7 =
5. 63 + 7 =
6. 35 + 5 =
7. 57 + 3 =
8. 23 + 7 =
9. 14 + 6 =
10. 13 + 7 =