In this updated edition of classic a math resource, more than 80 games and activities help kids ages 8 and older go beyond just memorizing rules! They will instead learn to think critically about math and how numbers work. Group and individual games teach fun, useful ways to manipulate odd and even numbers, prime and composite numbers, common and decimal fractions, and factors, divisors and multiples of numbers. Counting, calculating and writing numbers in languages from other cultures, such as China and Egypt, provide more understanding of basic math systems. Riddles, puzzles, number tricks and calculator games are fun ways to boost estimating and computation skills for every math student.