Computation

NCTM Number and Operations Standard: Grades 3–5

Compute fluently and make reasonable estimates • recognize equivalent representations for the same number and generate them by decomposing and composing numbers;

• understand various meanings of multiplication and division;

• identify and use relationships between operations, such as division as the inverse of multiplication, to solve problems;

Step 1

Check out this animation and find out about the commutative property and multiplication.

Step 2

Ready to try out an exploration on multiplication? Create an array of 6 rows of 8 in the color green . What is the product? Good luck!

Explore this Web resources for help with computation for multiplication and division!

Division Derby

Click on the picture to practice your division.