Tientallen/eenheden plus tientallen

Erbijsommen
Oefening 1
1. 74 + 20 =
 
2. 71 + 30 =
 
3. 36 + 20 =
 
4. 47 + 20 =
 
5. 21 + 40 =
 
6. 76 + 10 =
 
7. 73 + 20 =
 
8. 54 + 40 =
 
9. 15 + 20 =
 
10. 71 + 10 =
 
Oefening 2
1. 14 + 40 =
 
2. 22 + 10 =
 
3. 15 + 80 =
 
4. 57 + 40 =
 
5. 51 + 10 =
 
6. 43 + 10 =
 
7. 51 + 20 =
 
8. 37 + 20 =
 
9. 34 + 60 =
 
10. 17 + 30 =
 
Oefening 3
1. 82 + 10 =
 
2. 21 + 20 =
 
3. 22 + 40 =
 
4. 71 + 20 =
 
5. 86 + 10 =
 
6. 66 + 10 =
 
7. 17 + 50 =
 
8. 73 + 30 =
 
9. 36 + 50 =
 
10. 27 + 20 =
 
Oefening 4
1. 38 + 60 =
 
2. 67 + 20 =
 
3. 71 + 30 =
 
4. 41 + 10 =
 
5. 13 + 20 =
 
6. 66 + 30 =
 
7. 61 + 40 =
 
8. 88 + 10 =
 
9. 17 + 80 =
 
10. 45 + 20 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 74 + 20 =
2. 71 + 30 =
3. 36 + 20 =
4. 47 + 20 =
5. 21 + 40 =
6. 76 + 10 =
7. 73 + 20 =
8. 54 + 40 =
9. 15 + 20 =
10. 71 + 10 =
Oefening 2
1. 14 + 40 =
2. 22 + 10 =
3. 15 + 80 =
4. 57 + 40 =
5. 51 + 10 =
6. 43 + 10 =
7. 51 + 20 =
8. 37 + 20 =
9. 34 + 60 =
10. 17 + 30 =
Oefening 3
1. 82 + 10 =
2. 21 + 20 =
3. 22 + 40 =
4. 71 + 20 =
5. 86 + 10 =
6. 66 + 10 =
7. 17 + 50 =
8. 73 + 30 =
9. 36 + 50 =
10. 27 + 20 =
Oefening 4
1. 38 + 60 =
2. 67 + 20 =
3. 71 + 30 =
4. 41 + 10 =
5. 13 + 20 =
6. 66 + 30 =
7. 61 + 40 =
8. 88 + 10 =
9. 17 + 80 =
10. 45 + 20 =