Use the four operations with whole numbers to solve problems

How Do You Estimate a Multiplication Problem by Rounding?

Many real world math problems can be solved mentally. In this tutorial, you'll see how to estimate the answer to a word problem by multiplying mentally!
How Do You Figure Out What a Remainder Means When You're Dividing?

Division can help you solve all kinds of everyday problems! Just check out this tutorial involving sharing animal crackers!
What is Multiplication?

Multiplying integers is just like performing a bunch of additions of the same integer! Check out this tutorial and see how much multiplying and repeated addition have in common.