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