Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 34 + 6 =
 
2. 34 + 6 =
 
3. 14 + 6 =
 
4. 97 + 3 =
 
5. 28 + 2 =
 
6. 46 + 4 =
 
7. 92 + 8 =
 
8. 73 + 7 =
 
9. 11 + 9 =
 
10. 46 + 4 =
 
Oefening 2
1. 78 + 2 =
 
2. 71 + 9 =
 
3. 33 + 7 =
 
4. 88 + 2 =
 
5. 65 + 5 =
 
6. 68 + 2 =
 
7. 35 + 5 =
 
8. 75 + 5 =
 
9. 43 + 7 =
 
10. 12 + 8 =
 
Oefening 3
1. 45 + 5 =
 
2. 66 + 4 =
 
3. 43 + 7 =
 
4. 46 + 4 =
 
5. 36 + 4 =
 
6. 41 + 9 =
 
7. 82 + 8 =
 
8. 28 + 2 =
 
9. 68 + 2 =
 
10. 93 + 7 =
 
Oefening 4
1. 54 + 6 =
 
2. 58 + 2 =
 
3. 17 + 3 =
 
4. 44 + 6 =
 
5. 27 + 3 =
 
6. 83 + 7 =
 
7. 81 + 9 =
 
8. 52 + 8 =
 
9. 67 + 3 =
 
10. 85 + 5 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 34 + 6 =
2. 34 + 6 =
3. 14 + 6 =
4. 97 + 3 =
5. 28 + 2 =
6. 46 + 4 =
7. 92 + 8 =
8. 73 + 7 =
9. 11 + 9 =
10. 46 + 4 =
Oefening 2
1. 78 + 2 =
2. 71 + 9 =
3. 33 + 7 =
4. 88 + 2 =
5. 65 + 5 =
6. 68 + 2 =
7. 35 + 5 =
8. 75 + 5 =
9. 43 + 7 =
10. 12 + 8 =
Oefening 3
1. 45 + 5 =
2. 66 + 4 =
3. 43 + 7 =
4. 46 + 4 =
5. 36 + 4 =
6. 41 + 9 =
7. 82 + 8 =
8. 28 + 2 =
9. 68 + 2 =
10. 93 + 7 =
Oefening 4
1. 54 + 6 =
2. 58 + 2 =
3. 17 + 3 =
4. 44 + 6 =
5. 27 + 3 =
6. 83 + 7 =
7. 81 + 9 =
8. 52 + 8 =
9. 67 + 3 =
10. 85 + 5 =