1 / 11

Addition Properties

Addition Properties. 4 th Grade Math Mrs. Walker. Vocabulary. Say It! Addend Sum Commutative Property Associative P roperty Zero or Identity Property . Addend. Any number being added together 8 + 7 = 15. Sum. The answer to an addition problem 4 + 4 = 8.

kalare
Download Presentation

Addition Properties

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Addition Properties 4th Grade Math Mrs. Walker

  2. Vocabulary Say It! Addend Sum Commutative Property Associative Property Zero or Identity Property

  3. Addend Any number being added together 8 + 7 = 15

  4. Sum The answer to an addition problem 4 + 4 = 8

  5. Commutative Property of Addition The order numbers are added does not change the sum. 4 + 1 = 5 1 + 4 = 5 so….. 4 + 1 = 1 + 4

  6. Associative Property of Addition The way numbers are grouped when added does not change the sum. (5+2)+3 5+(2+3) 7 + 3 5 + 5 10 10

  7. Zero or Identity Property of Addition The sum of any number and 0 is the number. 8+0=8 0+8=8

  8. Whiteboards: Check what you Know! Complete the number sentence and name the property. • 19 + _____ = 19 • (5 + _____) + 2 = 5 + (9 + 2) • 74 + 68 = _____ + 74 • 542 + 0=_____ • (27 + 18) + 13 = 27 + ____________ • (15 + 7) + 23 =15 + ____________ • 84 + 61 = 61 + _____

  9. Practice In your Math Notebook: Math Book pg. 34 #s 8-13 and #s 25-28

  10. Word Problem Words Addition Altogether In all Sum Add Both Total

  11. Word Problem Practice: I have 30 minutes until I have to leave for school. I have to clean my room and fold the clothes before I can leave. It will take me 20 minutes to clean my room and 10 minutes to fold the clothes. Do I have enough time to do both chores before I leave? If so, does it matter what order I do them in? Use the Commutative Property of Addition to prove your answer. Do I have enough time? 20 + 10 = 30 YES!!! Does it matter the order? 20 + 10 = 30 10 + 20 = 30 NO!!! Now, you write a word problem using the Commutative Property of Addition to prove the answer.

More Related