Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 38 + 2 =
 
2. 48 + 2 =
 
3. 93 + 7 =
 
4. 92 + 8 =
 
5. 48 + 2 =
 
6. 26 + 4 =
 
7. 76 + 4 =
 
8. 22 + 8 =
 
9. 42 + 8 =
 
10. 28 + 2 =
 
Oefening 2
1. 31 + 9 =
 
2. 36 + 4 =
 
3. 93 + 7 =
 
4. 94 + 6 =
 
5. 43 + 7 =
 
6. 34 + 6 =
 
7. 36 + 4 =
 
8. 31 + 9 =
 
9. 86 + 4 =
 
10. 85 + 5 =
 
Oefening 3
1. 85 + 5 =
 
2. 44 + 6 =
 
3. 57 + 3 =
 
4. 24 + 6 =
 
5. 68 + 2 =
 
6. 12 + 8 =
 
7. 61 + 9 =
 
8. 57 + 3 =
 
9. 76 + 4 =
 
10. 37 + 3 =
 
Oefening 4
1. 12 + 8 =
 
2. 53 + 7 =
 
3. 76 + 4 =
 
4. 66 + 4 =
 
5. 67 + 3 =
 
6. 48 + 2 =
 
7. 14 + 6 =
 
8. 16 + 4 =
 
9. 13 + 7 =
 
10. 67 + 3 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 38 + 2 =
2. 48 + 2 =
3. 93 + 7 =
4. 92 + 8 =
5. 48 + 2 =
6. 26 + 4 =
7. 76 + 4 =
8. 22 + 8 =
9. 42 + 8 =
10. 28 + 2 =
Oefening 2
1. 31 + 9 =
2. 36 + 4 =
3. 93 + 7 =
4. 94 + 6 =
5. 43 + 7 =
6. 34 + 6 =
7. 36 + 4 =
8. 31 + 9 =
9. 86 + 4 =
10. 85 + 5 =
Oefening 3
1. 85 + 5 =
2. 44 + 6 =
3. 57 + 3 =
4. 24 + 6 =
5. 68 + 2 =
6. 12 + 8 =
7. 61 + 9 =
8. 57 + 3 =
9. 76 + 4 =
10. 37 + 3 =
Oefening 4
1. 12 + 8 =
2. 53 + 7 =
3. 76 + 4 =
4. 66 + 4 =
5. 67 + 3 =
6. 48 + 2 =
7. 14 + 6 =
8. 16 + 4 =
9. 13 + 7 =
10. 67 + 3 =