¡Practica la suma con tipos de ejercicios mixtos!
- Question 1: blank plus 3 equals 8.
- Question 2: 5 plus 4 equals blank.
- Question 3: blank plus 2 equals 4.
- Question 4: blank plus 5 equals 9.
- Question 5: 3 plus 4 equals blank.
- Question 6: 1 plus 5 equals blank.
