¡Practica la suma con tipos de ejercicios mixtos!
- Question 1: blank plus 2 equals 4.
- Question 2: blank plus 5 equals 10.
- Question 3: 3 plus 3 equals blank.
- Question 4: 2 plus 4 equals blank.
- Question 5: 4 plus 1 equals blank.
- Question 6: blank plus 4 equals 7.
