Tientallen min tientallen tot aan het tiental

Erafsommen
Oefening 1
1. 62 - 42 =
 
2. 21 - 21 =
 
3. 62 - 12 =
 
4. 58 - 48 =
 
5. 56 - 46 =
 
6. 25 - 25 =
 
7. 71 - 31 =
 
8. 28 - 28 =
 
9. 31 - 31 =
 
10. 73 - 33 =
 
Oefening 2
1. 71 - 71 =
 
2. 81 - 51 =
 
3. 62 - 42 =
 
4. 52 - 22 =
 
5. 78 - 48 =
 
6. 33 - 13 =
 
7. 71 - 71 =
 
8. 15 - 15 =
 
9. 42 - 12 =
 
10. 73 - 23 =
 
Oefening 3
1. 58 - 38 =
 
2. 48 - 28 =
 
3. 25 - 25 =
 
4. 57 - 17 =
 
5. 22 - 22 =
 
6. 61 - 41 =
 
7. 31 - 21 =
 
8. 66 - 26 =
 
9. 17 - 17 =
 
10. 55 - 35 =
 
Oefening 4
1. 45 - 45 =
 
2. 11 - 11 =
 
3. 66 - 56 =
 
4. 86 - 56 =
 
5. 48 - 18 =
 
6. 36 - 26 =
 
7. 63 - 53 =
 
8. 13 - 13 =
 
9. 44 - 34 =
 
10. 87 - 57 =
 

Tientallen min tientallen tot aan het tiental
| ANTWOORDEN

Erafsommen
Oefening 1
1. 62 - 42 =
2. 21 - 21 =
3. 62 - 12 =
4. 58 - 48 =
5. 56 - 46 =
6. 25 - 25 =
7. 71 - 31 =
8. 28 - 28 =
9. 31 - 31 =
10. 73 - 33 =
Oefening 2
1. 71 - 71 =
2. 81 - 51 =
3. 62 - 42 =
4. 52 - 22 =
5. 78 - 48 =
6. 33 - 13 =
7. 71 - 71 =
8. 15 - 15 =
9. 42 - 12 =
10. 73 - 23 =
Oefening 3
1. 58 - 38 =
2. 48 - 28 =
3. 25 - 25 =
4. 57 - 17 =
5. 22 - 22 =
6. 61 - 41 =
7. 31 - 21 =
8. 66 - 26 =
9. 17 - 17 =
10. 55 - 35 =
Oefening 4
1. 45 - 45 =
2. 11 - 11 =
3. 66 - 56 =
4. 86 - 56 =
5. 48 - 18 =
6. 36 - 26 =
7. 63 - 53 =
8. 13 - 13 =
9. 44 - 34 =
10. 87 - 57 =