Lesson 4.5: How Addition and Subtraction are Related

Today we learned about how addition and subtraction are related.  They are opposite or inverse operations that undo each other.  How cool is that??? 

Here are the links from class today:

• Using Addition to Check Subtraction
• Brain Break: Minions Banana Song
• Did You Know- New Zealand

Inverse Operations Game:

• Practice Inverse Operations (Scroll down to where it says "Practice" on the middle of the page)
• Inverse Operations Using a Calculator
• Missing Addend

Don't forget to take your quiz for Unit 4.5. Have an AMAZING weekend!!!