mrs. williams 7 th grade math. 2 below zero on a thermometer we say… words to integers
TRANSCRIPT
![Page 1: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/1.jpg)
INTEGER REVIEW AND ADDITION OF INTEGERS
Mrs. Williams 7th grade Math
![Page 2: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/2.jpg)
2 below zero on a thermometerWe say…
Words to Integers
![Page 3: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/3.jpg)
1. Sea Level2. 300 ft. above sea level
3. 2 feet below sea level
Integers on a map
![Page 4: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/4.jpg)
1. Can I borrow $2?2. I have $14.3. I deposited $300.4. I withdrew $20.5. I have a debit of $5 for a
payment.6. I have a credit of $60
for the last purchase.
Integers and money
![Page 5: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/5.jpg)
1.40 points in –the-hole2.15 to the good3.I gained 3 pounds.4.I lost 3 tickets.5.There was a decrease of 2
desks.6.There was an increase of 2
students.
Other ways to “integer talk”
![Page 6: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/6.jpg)
Watch BrainPop video
Intro to Adding integers
![Page 7: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/7.jpg)
When the signs are the same, find the sum.
In other words, ADD!! And keep the sign of the larger.
When the signs are different, find the difference.
In other words, Subtract! And keep the sign of the larger
number.
Adding Integers Notes
![Page 8: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/8.jpg)
Adding integers
Same sign – Sum+
Different signs – Difference
-
24+32-44+ -5
17 + -6-72+21
![Page 9: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/9.jpg)
Mrs. Williams’ turn:
-32 + -13
44+ (-56)
![Page 10: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/10.jpg)
How does this work?
On a number line…. Move to the right with a +, but a -
will turn it around.
Cancelling one another out…For every +, a – will cancel it out.
![Page 11: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/11.jpg)
Let’s do together:
Page 12 Problems
Now you finish the rest with a partner.
![Page 12: Mrs. Williams 7 th grade Math. 2 below zero on a thermometer We say… Words to Integers](https://reader036.vdocuments.us/reader036/viewer/2022062409/56649f045503460f94c183a5/html5/thumbnails/12.jpg)
Now it’s your turn…
Complete the rest on your own.
You will go over these with Mr. Graves.
NO CALCULATORS!!
Good Luck!!