Oefen optellen met gemengde oefeningstypes!
- Question 1: 5 plus 4 equals blank.
- Question 2: blank plus 1 equals 2.
- Question 3: blank plus 3 equals 8.
- Question 4: 4 plus 5 equals blank.
- Question 5: blank plus 3 equals 6.
- Question 6: 3 plus 2 equals blank.
