Tientallen/eenheden plus tientallen

Erbijsommen
Oefening 1
1. 38 + 30 =
 
2. 74 + 20 =
 
3. 75 + 30 =
 
4. 18 + 60 =
 
5. 87 + 10 =
 
6. 34 + 30 =
 
7. 42 + 30 =
 
8. 63 + 20 =
 
9. 42 + 50 =
 
10. 83 + 20 =
 
Oefening 2
1. 25 + 70 =
 
2. 28 + 30 =
 
3. 48 + 50 =
 
4. 35 + 60 =
 
5. 67 + 20 =
 
6. 36 + 30 =
 
7. 66 + 20 =
 
8. 84 + 10 =
 
9. 68 + 10 =
 
10. 24 + 80 =
 
Oefening 3
1. 88 + 10 =
 
2. 77 + 10 =
 
3. 11 + 50 =
 
4. 54 + 30 =
 
5. 34 + 30 =
 
6. 23 + 10 =
 
7. 48 + 20 =
 
8. 68 + 20 =
 
9. 44 + 10 =
 
10. 11 + 20 =
 
Oefening 4
1. 31 + 40 =
 
2. 85 + 10 =
 
3. 28 + 40 =
 
4. 58 + 40 =
 
5. 73 + 20 =
 
6. 18 + 30 =
 
7. 81 + 10 =
 
8. 13 + 70 =
 
9. 42 + 50 =
 
10. 53 + 30 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 38 + 30 =
2. 74 + 20 =
3. 75 + 30 =
4. 18 + 60 =
5. 87 + 10 =
6. 34 + 30 =
7. 42 + 30 =
8. 63 + 20 =
9. 42 + 50 =
10. 83 + 20 =
Oefening 2
1. 25 + 70 =
2. 28 + 30 =
3. 48 + 50 =
4. 35 + 60 =
5. 67 + 20 =
6. 36 + 30 =
7. 66 + 20 =
8. 84 + 10 =
9. 68 + 10 =
10. 24 + 80 =
Oefening 3
1. 88 + 10 =
2. 77 + 10 =
3. 11 + 50 =
4. 54 + 30 =
5. 34 + 30 =
6. 23 + 10 =
7. 48 + 20 =
8. 68 + 20 =
9. 44 + 10 =
10. 11 + 20 =
Oefening 4
1. 31 + 40 =
2. 85 + 10 =
3. 28 + 40 =
4. 58 + 40 =
5. 73 + 20 =
6. 18 + 30 =
7. 81 + 10 =
8. 13 + 70 =
9. 42 + 50 =
10. 53 + 30 =