Librería Samer Atenea
Kálamo Books
Librería Elías (Asturias)
Librería Kolima (Madrid)
Librería Proteo (Málaga)
What should be added to 103 to get 250?This series introduces your child to analysing data through images which helps stimulate their mind.The activities also help enhance aptitude-based problem-solving skills. The difficulty level graduallyincreases in the books while also going back to easier questions for revision and retention of theold concepts simultaneously.