Tientallen/eenheden plus tientallen

Erbijsommen
Oefening 1
1. 47 + 30 =
 
2. 74 + 10 =
 
3. 24 + 60 =
 
4. 61 + 10 =
 
5. 71 + 20 =
 
6. 31 + 60 =
 
7. 76 + 20 =
 
8. 73 + 10 =
 
9. 77 + 10 =
 
10. 24 + 60 =
 
Oefening 2
1. 18 + 20 =
 
2. 52 + 40 =
 
3. 74 + 20 =
 
4. 18 + 70 =
 
5. 34 + 40 =
 
6. 18 + 60 =
 
7. 45 + 50 =
 
8. 13 + 80 =
 
9. 35 + 30 =
 
10. 81 + 10 =
 
Oefening 3
1. 71 + 20 =
 
2. 67 + 30 =
 
3. 63 + 30 =
 
4. 63 + 30 =
 
5. 24 + 80 =
 
6. 61 + 10 =
 
7. 53 + 30 =
 
8. 57 + 30 =
 
9. 37 + 50 =
 
10. 22 + 20 =
 
Oefening 4
1. 14 + 50 =
 
2. 66 + 30 =
 
3. 55 + 30 =
 
4. 58 + 20 =
 
5. 21 + 80 =
 
6. 86 + 10 =
 
7. 73 + 10 =
 
8. 87 + 10 =
 
9. 53 + 30 =
 
10. 45 + 40 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 47 + 30 =
2. 74 + 10 =
3. 24 + 60 =
4. 61 + 10 =
5. 71 + 20 =
6. 31 + 60 =
7. 76 + 20 =
8. 73 + 10 =
9. 77 + 10 =
10. 24 + 60 =
Oefening 2
1. 18 + 20 =
2. 52 + 40 =
3. 74 + 20 =
4. 18 + 70 =
5. 34 + 40 =
6. 18 + 60 =
7. 45 + 50 =
8. 13 + 80 =
9. 35 + 30 =
10. 81 + 10 =
Oefening 3
1. 71 + 20 =
2. 67 + 30 =
3. 63 + 30 =
4. 63 + 30 =
5. 24 + 80 =
6. 61 + 10 =
7. 53 + 30 =
8. 57 + 30 =
9. 37 + 50 =
10. 22 + 20 =
Oefening 4
1. 14 + 50 =
2. 66 + 30 =
3. 55 + 30 =
4. 58 + 20 =
5. 21 + 80 =
6. 86 + 10 =
7. 73 + 10 =
8. 87 + 10 =
9. 53 + 30 =
10. 45 + 40 =