# Comparing Numbers

Less thangreater thanand equal to

# Comparing Numbers

Created 2 years ago

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1. ### Slide 1 - Comparing Numbers

• Using <, >, and =
2. ### Slide 2 - Comparing Numbers

• It is good to know if one number is larger, smaller, or the same as another number.
• Which number is larger 17 or 54? Or are they the same?
• How do we show which is larger?
• 17 54
3. ### Slide 3 - Three Signs: We use three signs to compare numbers. *Think of the less than and greater than signs as alligator mouths. The alligator always eats the larger number.*

• =
• If two values are equal, we use the "equals" sign
• example: 3+2 = 5
• <
• If one value is smaller than the other, we use the "less than" sign.
• example: 2 < 7
• >
• And if one value is bigger than the other, we use the "greater than" sign
• example: 9 > 6

5. ### Slide 5 - Equals Sign =

• Here are some examples of when you use the equal sign.
• 4 = 4
• 3+3 = 6
• 4+3 = 5+2
• 19 = 10+9
• 45 = 45
• 70 = 60 + 10
• 100 = 10 tens
6. ### Slide 6 - Less Than Sign <

• Here are some examples of when you use the less than sign. Remember the alligator always eats the larger number.
• 2 < 9
• 34 < 43
• 10 + 5 < 10 + 9
• 11 < 18
• 309 < 387
• 12 + 1 < 15
• 20 + 1 < 20 +6
7. ### Slide 7 - Greater Than Sign >

• Here are some examples of when you use the greater than sign. Remember the alligator always eats the larger number.
• 5 > 2
• 36 > 26
• 10 + 8 > 10 + 2
• 16 > 11
• 298 > 271
• 13 + 1 > 10
• 20 + 8 > 20 + 2

• 11 24

• 15+5 20

• 100 99

• 10 5+5

18. ### Slide 18 - Extra Online Practice

• Comparing numbers through 10: http://www.mathsisfun.com/algebra/compare-numbers-10.html
• Comparing numbers through 100: http://www.mathsisfun.com/algebra/compare-numbers-100.html
19. ### Slide 19 - Next Generation Standard

• M.1.NBT.3
• compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.(CCSS Math.1.NBT.3)
20. ### Slide 20 - Resources

• http://www.mathsisfun.com/algebra/compare-numbers-10.html
• http://www.mathsisfun.com/algebra/compare-numbers-100.html
• https://www.youtube.com/watch?v=9ZXEL0yuxwM (video: creative commons)
• http://ipkitten.blogspot.com/2014/12/friday-fantasies_19.html (Slide 1 graphic: creative commons)
• http://mrsjlbryan.wikispaces.com/Math+Tools (slide 5 graphic: creative commons
• https://www.flickr.com/photos/evelynsaenz/6689614551/ (Slide 6 and 7 graphics: creative commons