Common Core
3.OA.A.1
2 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Grade 3 Math · Chapter 1 · Lesson 1
Equal Groups and Multiplication
A short way to write repeated addition.
Grade 3 Math · Chapter 1 · Lesson 2
Arrays and the Commutative Property
Turn the array and the product stays the same.