Ability (3) Problem solving (2) Arithmetic (2) Addition (2) Utilization (2) Chez l'enfant (2) Compétence (2) Aptitude (2) arithmétique (2) analyse comparative (2) objet (2) recherche (1) besoin (1) littérature (1) champ (1) coût (1) comparaison (1) ordre (1) calcul (1) psychosociologie (1) Language (1) Counting (1) Comparison (1) Costs (1) Children (1) Math anxiety (1) Dyslexics (1) Preschool children (1) Numeration, Arabic (1) Year (1)