Oefen optellen met gemengde oefeningstypes!
- Question 1: 5 plus 4 equals blank.
- Question 2: 2 plus 1 equals blank.
- Question 3: 1 plus 5 equals blank.
- Question 4: 3 plus 5 equals blank.
- Question 5: blank plus 5 equals 10.
- Question 6: blank plus 1 equals 5.