Multiplying Whole Numbers
4.NBT.5
What the standard says...
Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/ or area models.
There are multiple strategies for multiplying! Check out the anchor chart below!
Practice the "Box and Cluster" or the Array Model!
Click the button to watch a quick video and try out some problems!
Practice the "Lattice" multiplication strategy!
Click the button to watch a quick video and try out a problem!
Practice the "Partial Products" Strategy!
Click the button to watch a quick video and try out a problem!
Practice using the "Standard Algorithm" Strategy!
Watch the video and try out a couple of problems! This video will also be helpful for the game you'll play next!
Get the materials for the game from your teacher!
Your turn to TEACH someone!
Think back to the lattice video you watched- the student did a great job explaining the strategy right? Now it's your turn! Write a multiplication word problem and then pick a strategy to use while solving. You'll need to video yourself explaining the problem/strategy! I can't wait to see it!
Still need a little more practice?
Try solving these problems and use the QR code to check your work!