¡Practica la suma con tipos de ejercicios mixtos!
- Question 1: 4 plus 5 equals blank.
- Question 2: blank plus 2 equals 5.
- Question 3: 2 plus 2 equals blank.
- Question 4: blank plus 2 equals 3.
- Question 5: 3 plus 3 equals blank.
- Question 6: blank plus 4 equals 9.
