Osmo Pizza Co. Communication Skills & Maths Learning Game This Osmo Pizza Co. Communication Skills & Maths Learning Game ($50) teaches kids ages 5 and up maths, money, addition, subtraction, fractions, fast paced mental maths, and more (but heads up: it needs the Osmo starter kit to work!). Image Source: amazon.com Osmo Pizza Co. Communication Skills & Maths Learning Game $50 from amazon.com Buy Now