Mental Math: Eine schnelle und einfache Anleitung für mentale Mathematik und schnelleres Rechnen
19,39 €
If You've Grown Up Hating Math, That's Probably Because You've Been Taught With The Wrong Approach. Can You Quickly Calculate How Many Eggs You'll Need To Make 100 Pancakes, If Your Recipe Says That 2 Eggs Make 20 Pancakes?.
Jetzt bei Ebay:
