Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 46 + 4 =
 
2. 93 + 7 =
 
3. 86 + 4 =
 
4. 72 + 8 =
 
5. 35 + 5 =
 
6. 55 + 5 =
 
7. 42 + 8 =
 
8. 26 + 4 =
 
9. 26 + 4 =
 
10. 51 + 9 =
 
Oefening 2
1. 14 + 6 =
 
2. 16 + 4 =
 
3. 36 + 4 =
 
4. 23 + 7 =
 
5. 24 + 6 =
 
6. 76 + 4 =
 
7. 96 + 4 =
 
8. 94 + 6 =
 
9. 43 + 7 =
 
10. 11 + 9 =
 
Oefening 3
1. 53 + 7 =
 
2. 73 + 7 =
 
3. 33 + 7 =
 
4. 42 + 8 =
 
5. 95 + 5 =
 
6. 26 + 4 =
 
7. 47 + 3 =
 
8. 55 + 5 =
 
9. 98 + 2 =
 
10. 16 + 4 =
 
Oefening 4
1. 18 + 2 =
 
2. 91 + 9 =
 
3. 81 + 9 =
 
4. 11 + 9 =
 
5. 51 + 9 =
 
6. 33 + 7 =
 
7. 51 + 9 =
 
8. 14 + 6 =
 
9. 71 + 9 =
 
10. 45 + 5 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 46 + 4 =
2. 93 + 7 =
3. 86 + 4 =
4. 72 + 8 =
5. 35 + 5 =
6. 55 + 5 =
7. 42 + 8 =
8. 26 + 4 =
9. 26 + 4 =
10. 51 + 9 =
Oefening 2
1. 14 + 6 =
2. 16 + 4 =
3. 36 + 4 =
4. 23 + 7 =
5. 24 + 6 =
6. 76 + 4 =
7. 96 + 4 =
8. 94 + 6 =
9. 43 + 7 =
10. 11 + 9 =
Oefening 3
1. 53 + 7 =
2. 73 + 7 =
3. 33 + 7 =
4. 42 + 8 =
5. 95 + 5 =
6. 26 + 4 =
7. 47 + 3 =
8. 55 + 5 =
9. 98 + 2 =
10. 16 + 4 =
Oefening 4
1. 18 + 2 =
2. 91 + 9 =
3. 81 + 9 =
4. 11 + 9 =
5. 51 + 9 =
6. 33 + 7 =
7. 51 + 9 =
8. 14 + 6 =
9. 71 + 9 =
10. 45 + 5 =