Tientallen/eenheden plus tientallen

Erbijsommen
Oefening 1
1. 81 + 10 =
 
2. 85 + 10 =
 
3. 86 + 10 =
 
4. 88 + 10 =
 
5. 65 + 30 =
 
6. 18 + 70 =
 
7. 58 + 30 =
 
8. 41 + 30 =
 
9. 81 + 20 =
 
10. 21 + 50 =
 
Oefening 2
1. 13 + 70 =
 
2. 63 + 30 =
 
3. 84 + 10 =
 
4. 76 + 10 =
 
5. 38 + 30 =
 
6. 85 + 10 =
 
7. 45 + 50 =
 
8. 22 + 60 =
 
9. 42 + 50 =
 
10. 28 + 20 =
 
Oefening 3
1. 17 + 50 =
 
2. 64 + 30 =
 
3. 51 + 20 =
 
4. 45 + 20 =
 
5. 28 + 20 =
 
6. 35 + 30 =
 
7. 48 + 30 =
 
8. 54 + 40 =
 
9. 37 + 20 =
 
10. 78 + 10 =
 
Oefening 4
1. 72 + 10 =
 
2. 53 + 40 =
 
3. 76 + 20 =
 
4. 78 + 20 =
 
5. 31 + 20 =
 
6. 33 + 40 =
 
7. 34 + 50 =
 
8. 12 + 20 =
 
9. 56 + 40 =
 
10. 37 + 40 =
 

Tientallen/eenheden plus tientallen
| ANTWOORDEN

Erbijsommen
Oefening 1
1. 81 + 10 =
2. 85 + 10 =
3. 86 + 10 =
4. 88 + 10 =
5. 65 + 30 =
6. 18 + 70 =
7. 58 + 30 =
8. 41 + 30 =
9. 81 + 20 =
10. 21 + 50 =
Oefening 2
1. 13 + 70 =
2. 63 + 30 =
3. 84 + 10 =
4. 76 + 10 =
5. 38 + 30 =
6. 85 + 10 =
7. 45 + 50 =
8. 22 + 60 =
9. 42 + 50 =
10. 28 + 20 =
Oefening 3
1. 17 + 50 =
2. 64 + 30 =
3. 51 + 20 =
4. 45 + 20 =
5. 28 + 20 =
6. 35 + 30 =
7. 48 + 30 =
8. 54 + 40 =
9. 37 + 20 =
10. 78 + 10 =
Oefening 4
1. 72 + 10 =
2. 53 + 40 =
3. 76 + 20 =
4. 78 + 20 =
5. 31 + 20 =
6. 33 + 40 =
7. 34 + 50 =
8. 12 + 20 =
9. 56 + 40 =
10. 37 + 40 =