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