Optellen tot het volgende tiental

Erbijsommen
Oefening 1
1. 32 + 8 =
 
2. 93 + 7 =
 
3. 93 + 7 =
 
4. 47 + 3 =
 
5. 18 + 2 =
 
6. 88 + 2 =
 
7. 54 + 6 =
 
8. 87 + 3 =
 
9. 71 + 9 =
 
10. 66 + 4 =
 
Oefening 2
1. 22 + 8 =
 
2. 56 + 4 =
 
3. 65 + 5 =
 
4. 61 + 9 =
 
5. 33 + 7 =
 
6. 66 + 4 =
 
7. 52 + 8 =
 
8. 86 + 4 =
 
9. 88 + 2 =
 
10. 45 + 5 =
 
Oefening 3
1. 34 + 6 =
 
2. 94 + 6 =
 
3. 86 + 4 =
 
4. 67 + 3 =
 
5. 64 + 6 =
 
6. 53 + 7 =
 
7. 76 + 4 =
 
8. 78 + 2 =
 
9. 96 + 4 =
 
10. 66 + 4 =
 
Oefening 4
1. 51 + 9 =
 
2. 95 + 5 =
 
3. 91 + 9 =
 
4. 62 + 8 =
 
5. 38 + 2 =
 
6. 86 + 4 =
 
7. 91 + 9 =
 
8. 98 + 2 =
 
9. 74 + 6 =
 
10. 38 + 2 =
 

Optellen tot het volgende tiental
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 32 + 8 =
2. 93 + 7 =
3. 93 + 7 =
4. 47 + 3 =
5. 18 + 2 =
6. 88 + 2 =
7. 54 + 6 =
8. 87 + 3 =
9. 71 + 9 =
10. 66 + 4 =
Oefening 2
1. 22 + 8 =
2. 56 + 4 =
3. 65 + 5 =
4. 61 + 9 =
5. 33 + 7 =
6. 66 + 4 =
7. 52 + 8 =
8. 86 + 4 =
9. 88 + 2 =
10. 45 + 5 =
Oefening 3
1. 34 + 6 =
2. 94 + 6 =
3. 86 + 4 =
4. 67 + 3 =
5. 64 + 6 =
6. 53 + 7 =
7. 76 + 4 =
8. 78 + 2 =
9. 96 + 4 =
10. 66 + 4 =
Oefening 4
1. 51 + 9 =
2. 95 + 5 =
3. 91 + 9 =
4. 62 + 8 =
5. 38 + 2 =
6. 86 + 4 =
7. 91 + 9 =
8. 98 + 2 =
9. 74 + 6 =
10. 38 + 2 =