Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 63 + 7 =
 
2. 77 + 3 =
 
3. 47 + 3 =
 
4. 77 + 3 =
 
5. 88 + 2 =
 
6. 91 + 9 =
 
7. 77 + 3 =
 
8. 12 + 8 =
 
9. 26 + 4 =
 
10. 36 + 4 =
 
Oefening 2
1. 51 + 9 =
 
2. 91 + 9 =
 
3. 96 + 4 =
 
4. 94 + 6 =
 
5. 64 + 6 =
 
6. 83 + 7 =
 
7. 37 + 3 =
 
8. 75 + 5 =
 
9. 57 + 3 =
 
10. 17 + 3 =
 
Oefening 3
1. 18 + 2 =
 
2. 27 + 3 =
 
3. 78 + 2 =
 
4. 44 + 6 =
 
5. 73 + 7 =
 
6. 93 + 7 =
 
7. 97 + 3 =
 
8. 36 + 4 =
 
9. 85 + 5 =
 
10. 42 + 8 =
 
Oefening 4
1. 84 + 6 =
 
2. 25 + 5 =
 
3. 18 + 2 =
 
4. 12 + 8 =
 
5. 95 + 5 =
 
6. 74 + 6 =
 
7. 11 + 9 =
 
8. 33 + 7 =
 
9. 26 + 4 =
 
10. 43 + 7 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 63 + 7 =
2. 77 + 3 =
3. 47 + 3 =
4. 77 + 3 =
5. 88 + 2 =
6. 91 + 9 =
7. 77 + 3 =
8. 12 + 8 =
9. 26 + 4 =
10. 36 + 4 =
Oefening 2
1. 51 + 9 =
2. 91 + 9 =
3. 96 + 4 =
4. 94 + 6 =
5. 64 + 6 =
6. 83 + 7 =
7. 37 + 3 =
8. 75 + 5 =
9. 57 + 3 =
10. 17 + 3 =
Oefening 3
1. 18 + 2 =
2. 27 + 3 =
3. 78 + 2 =
4. 44 + 6 =
5. 73 + 7 =
6. 93 + 7 =
7. 97 + 3 =
8. 36 + 4 =
9. 85 + 5 =
10. 42 + 8 =
Oefening 4
1. 84 + 6 =
2. 25 + 5 =
3. 18 + 2 =
4. 12 + 8 =
5. 95 + 5 =
6. 74 + 6 =
7. 11 + 9 =
8. 33 + 7 =
9. 26 + 4 =
10. 43 + 7 =