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## Ms. Lonsdale’s 7 th grade math

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**Ms. Lonsdale’s 7th grade math**Notes for the week of 9-17 to 9-21**Think it – addition/subtraction?**• Do the following words mean addition, subtraction, either, or neither? Sum dropped Altogether per Difference less than How much more total cut**See it – addition and subtraction key words**• Add – to bring amounts together (increasing) • Subtract – to take a something away from an amount (decreasing).**See it**Angelina deposited $1,152.37 in her checking account. She withdrew a check for $11.53, then deposited another $52.87. What is the current balance in Angelina’s account?**See it**Angelina deposited $1,152.37 in her checking account. She withdrew a check for $11.53, then deposited another $52.87. What is the current balance in Angelina’s account?**See it**Angelina deposited $1,152.37 in her checking account. She withdrew a check for $11.53, then deposited another $52.87. What is the current balance in Angelina’s account?**See it**Angelina deposited $1,152.37 in her checking account. She withdrew a check for $11.53, then deposited another $52.87. What is the current balance in Angelina’s account?**See it**Angelina deposited $1,152.37 in her checking account. She withdrew a check for $11.53, then deposited another $52.87. What is the current balance in Angelina’s account? 1552.37**See it**Angelina deposited $1,552.37 in her checking account. She withdrew a check for $11.53, then deposited another $52.87. What is the current balance in Angelina’s account? 1552.37 - 11.53**See it**Angelina deposited $1,552.37 in her checking account. She withdrew a check for $11.53, then deposited another $52.87. What is the current balance in Angelina’s account? 1552.37 1540.84 - 11.53**See it**Angelina deposited $1,552.37 in her checking account. She withdrew a check for $11.53, then deposited another $52.87. What is the current balance in Angelina’s account? 1552.37 1540.84 - 11.53 + 52.87**See It**The temperature in Gulfport on one summer day rose from 78.6º to 97.3º. What was the change in temperature that day?**See It**The temperature in Gulfport on one summer day rose from 78.6º to 97.3º. What was the change in temperature that day?**See It**The temperature in Gulfport on one summer day rose from 78.6º to 97.3º. What was the change in temperature that day? 97.3 - 78.6**See It**WHERE do you look first in a real world problem?**See It**Brandon went to the Byhalia football game and bought snacks for $1.25. Zack went too and bought additional snacks for $2.50.**See It**Brandon went to the Byhalia football game and bought snacks for $1.25. Zack went too and bought additional snacks for $2.50. What is the difference between the amount Brandon bought and the amount Zack bought? How much did Brandon and Zack pay altogether?**See It**Brandon went to the Byhalia football game and bought snacks for $1.25. Zack went too and bought additional snacks for $2.50. What is the difference between the amount Brandon bought and the amount Zack bought? How much did Brandon and Zack pay altogether?**See It**Brandon went to the Byhalia football game and bought snacks for $1.25. Zack went too and bought additional snacks for $2.50. What is the difference between the amount Brandon bought and the amount Zack bought? How much did Brandon and Zack pay altogether?**See It**One week John was given an allowance of $12.50. The next week, this allowance dropped to $7.25. What is the difference between these two amounts?**See It**One week John was given an allowance of $12.50. The next week, this allowance dropped to $7.25. How much money will John have earned in those two weeks combined?**See It**No key word? Think about what is happening – is the value increasing or decreasing… Nathean goes to the store and buys $7.72 worth of snacks. If he pays with a $10 bill, how much money will he get back?**Work It**• How many problems can your group solve? • When you finish: one person quietly goes to Ms. Lonsdale, she checks answer, you get another question. • See how many you can solve!**Own It**Begin work on your homework packet for this week!**Tuesday, 9-17-13 Bellwork**One week Kimora was given an allowance of $14.50. The next week, this allowance dropped to $8.75. How much money will Kimora have earned in those two weeks combined? 1. What key words do you see? 2. Which one would you use? Why? 3. What is the solution to the problem?**Think It**____________, ____________, or neither?**Think It**____________, ____________, or neither? How many more like ______ than ______? How many more like ______ than ______?**See It**The Coldwater River was 21.3 feet above normal levels during flooding last year. This year, it is only 2.54 feet above normal levels. By how much has the water level changed from last year to this year?**See It**The Coldwater River was 21.3 feet above normal levels during flooding last year. This year, it is only 2.54 feet above normal levels. By how much has the water level changed from last year to this year? 21.3 ft.**See It**The Coldwater River was 21.3 feet above normal levels during flooding last year. This year, it is only 2.54 feet above normal levels. By how much has the water level changed from last year to this year? 21.3 ft. 2.54 ft.**See It**The Coldwater River was 21.3 feet above normal levels during flooding last year. This year, it is only 2.54 feet above normal levels. By how much has the water level changed from last year to this year? Change = 21.3 - 2.54 21.3 ft. change 2.54 ft.**See It**Keiarra is cutting plastic string to make a keychain. She starts with 13.2 feet of red string, then she cuts off 3.4 feet, and then she cuts off another 5.13 feet. How much rope is left for Keiarra to use?**See It**Keiarra is cutting plastic string to make a keychain. She starts with 13.2 feet of red string, then she cuts off 3.4 feet, and then she cuts off another 5.13 feet. How much rope is left for Keiarra to use? 13.2 ft 3.4 ft.**See It**Keiarra is cutting plastic string to make a keychain. She starts with 13.2 feet of red string, then she cuts off 3.4 feet, and then she cuts off another 5.13 feet. How much rope is left for Keiarra to use? 13.2 ft 5.13 ft. 3.4 ft.**See It**Jennifer drove 53.2 miles to her grandmother’s home. From her grandmother’s home she drove 12.67 miles to her aunt’s home. How far did she drive in total?**See It**Jennifer drove 53.2 miles to her grandmother’s home. From her grandmother’s home she drove 12.67 miles to her aunt’s home. How far did she drive in total? 53.2 miles**See It**Jennifer drove 53.2 miles to her grandmother’s home. From her grandmother’s home she drove 12.67 miles to her aunt’s home. How far did she drive in total? 53.2 miles 12.67 miles**Work It**Distance in space can be measured in astronomical units, or AU. Jupiter is 5.2 AU from the Sun. Pluto is 39.223 AU from the Sun. How much closer to the Sun is Jupiter than Pluto?**Work It**Jackie and Pam were running a race. Jackie finished the race in 32.4 minutes, while Pam finished in 34.51 minutes. What is the difference between Pam and Jackie’s finishing time?**Work It**• Create your own problem (either with addition or subtraction) using decimals. • You have 10 minutes to write and illustrate your problem. • Solve it in your own notes!**Work It**• Pass with the group next to you! • Once you get a new question, solve it. • Great examples? We will share with the class!**Own it**• Continue working on your homework packet.**Wednesday, 9-18-13 Bellwork**Illustrate the following: “In Greenwood, 4,025 people voted in the state elections. In Holly Springs, 9,242 people voted. How many more people voted in Holly Springs than in Greenwood?” Step Up: Solve the real-world problem above.**Think It**Gasoline sells for $2.79 per gallon. If Mr. Pollard purchases 13.7 gallons, how much does it cost him?**See It**Multiplication – the repeated addition of a quantity. Division – the splitting of a quantity into a number of groups.**See It**Multiplication – the repeated addition of a quantity. Division – the splitting of a quantity into a number of groups.**See It**Multiplication – the repeated addition of a quantity. Division – the splitting of a quantity into a number of groups.**See It**Multiplication – the repeated addition of a quantity. Division – the splitting of a quantity into a number of groups.**See It**Multiplication – the repeated addition of a quantity. 4 x 3 = 12 Division – the splitting of a quantity into a number of groups.