Practice addition with mixed exercise types!
- Question 1: blank plus 3 equals 4.
- Question 2: blank plus 4 equals 7.
- Question 3: blank plus 5 equals 9.
- Question 4: 5 plus 2 equals blank.
- Question 5: 1 plus 2 equals blank.
- Question 6: 2 plus 4 equals blank.
