Help your child get comfortable with the concept of estimation, which will come in handy during everything from standardized tests to future shopping trips!

What's my number? Go ahead and guess! This logic game focuses on number sense that suits all ability levels, as players' questions can be simple or complex.

Trying to find sums of groups of multiples is a great way to practice your addition. Be sure to double check your work. If you clear all of the cards, you win!