Tientallen min tientallen tot aan het tiental

Erafsommen
Oefening 1
1. 21 - 21 =
 
2. 35 - 25 =
 
3. 23 - 13 =
 
4. 31 - 21 =
 
5. 87 - 67 =
 
6. 14 - 14 =
 
7. 42 - 22 =
 
8. 18 - 18 =
 
9. 87 - 77 =
 
10. 37 - 27 =
 
Oefening 2
1. 57 - 27 =
 
2. 17 - 17 =
 
3. 17 - 17 =
 
4. 28 - 28 =
 
5. 68 - 28 =
 
6. 48 - 38 =
 
7. 54 - 24 =
 
8. 46 - 46 =
 
9. 23 - 23 =
 
10. 56 - 26 =
 
Oefening 3
1. 24 - 14 =
 
2. 87 - 37 =
 
3. 54 - 14 =
 
4. 23 - 13 =
 
5. 34 - 34 =
 
6. 47 - 17 =
 
7. 32 - 12 =
 
8. 76 - 46 =
 
9. 43 - 13 =
 
10. 81 - 71 =
 
Oefening 4
1. 82 - 82 =
 
2. 52 - 52 =
 
3. 12 - 12 =
 
4. 47 - 37 =
 
5. 33 - 13 =
 
6. 37 - 17 =
 
7. 12 - 12 =
 
8. 48 - 28 =
 
9. 11 - 11 =
 
10. 11 - 11 =
 

Tientallen min tientallen tot aan het tiental
| ANTWOORDEN

Erafsommen
Oefening 1
1. 21 - 21 =
2. 35 - 25 =
3. 23 - 13 =
4. 31 - 21 =
5. 87 - 67 =
6. 14 - 14 =
7. 42 - 22 =
8. 18 - 18 =
9. 87 - 77 =
10. 37 - 27 =
Oefening 2
1. 57 - 27 =
2. 17 - 17 =
3. 17 - 17 =
4. 28 - 28 =
5. 68 - 28 =
6. 48 - 38 =
7. 54 - 24 =
8. 46 - 46 =
9. 23 - 23 =
10. 56 - 26 =
Oefening 3
1. 24 - 14 =
2. 87 - 37 =
3. 54 - 14 =
4. 23 - 13 =
5. 34 - 34 =
6. 47 - 17 =
7. 32 - 12 =
8. 76 - 46 =
9. 43 - 13 =
10. 81 - 71 =
Oefening 4
1. 82 - 82 =
2. 52 - 52 =
3. 12 - 12 =
4. 47 - 37 =
5. 33 - 13 =
6. 37 - 17 =
7. 12 - 12 =
8. 48 - 28 =
9. 11 - 11 =
10. 11 - 11 =