ijekeopara

Learn how you can use simple tricks to make math easier.How can you multiply using your fingers? How does a soroban speed up your sums? Readers (Grades 5-8) will learn all about addition, subtraction, multiplication, and division.

Partying dinos explain estimation in this entertaining introduction by a tried-and-true team of fun math book creators. How much pizza do you need for a dinosaur party? If you don't know exactly, you have to estimate! This lively introduction to...