Name: ______________________________

Date:

Homeroom:

7th Grade Math:

Unit: Skills for Success

Packet 6: Adding and Subtracting Decimals

Objectives: Scholars will be able to add and subtract decimals. Scholars will be able to solve word problems involving the addition and

subtraction of decimals. Agenda:

1. Review Do Now 6. Exit Ticket2. Adding Decimals 7. Homework Overview3. Subtracting Decimals4. Decimal Problem Solving5. Independent Practice Homework: Adding and Subtracting

Decimals

Do Now:

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Adding Decimals When we add decimals we must line up the __________________________

__________________________.o Example: 9.81 + 4.46

Sometimes you will have to add decimal numbers that do not have the same number of digits. To add these numbers, put extra __________________________ on the right until you have the same number of decimal digits.

o Example: 34.6 + 12.234

Be very careful when a problem combines ___________________________ numbers and decimal numbers.

o Example: 8.71 + 5

Subtracting Decimals2

When we subtract decimals we must line up the _________________________ __________________________. Regroup just like you would with whole numbers.

o Example: 7.32 – 1.61

Like with addition, sometimes you will need to subtract decimal numbers that do not have the same number of digits. Use zeros as _____________________________________________.

o Example: 6.4 – 5.37

Be very careful when a problem combines ___________________________ numbers and decimal numbers.

o Example: 7 – 1.62

Decimal Problem Solving

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Directions: Use the “Hamburger Hut Menu” for each problem below. All prices include sales tax.

1. Tom buys a milk, a cheese sandwich and cherry pie. How much does he owe?

2. If Tom pays with a twenty-dollar bill, how much change would he get back?

3. Roberto has $10.00. Does he have enough money to buy a Jumbo Burger and Onion Rings? If not, how much more would he need?

Independent Practice

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Directions: Use the “Hamburger Hut Menu” for each problem below. All prices include sales tax.

1. David and John each order a Jumbo Burger and a cup of Hot Chocolate. How much do they owe?

2. Mr. Wilson stopped for breakfast on his way to work. He had Ham and Eggs, Grapefruit Juice and Coffee. How much did his breakfast cost?

3. Shelia, Lisa and Jim stopped at the Hamburger Hut for dinner. Lisa and Shelia shared a Hut Burger and a side order of Onion Rings. Jim ordered a Hot Turkey Sandwich and a piece of Cherry Pie. What amount did they owe?

4. Ted and Allison decided to have hamburgers after a movie. Ted had an Avocado Burger and a Milk Shake. Allison ordered the Patty Melt and Root Beer. What was the total of the bill?

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5. Suppose that you buy a Hut Burger and a Cola. You pay for your food with a $10.00 bill. How much change should you receive?

6. If you order Bacon and Eggs, Orange Juice, and Milk and pay with a $10.00 bill, what amount of change will you get back?

7. Your friend has a Cheese Sandwich, Tomato Soup, and Milk. He gives the cashier $20.00. What amount of change should the cashier give him?

8. An order of Onion Rings, a Milk Shake, and a piece of Cherry Pie would cost how much? How much change would you get from $10.00

9. You would like to have a Steak Dinner, Iced Tea, and Chocolate Cake. You have $11.31. How much more money do you need?

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Practice beyond Perfection-Turn in for Dollars!

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Practice beyond Perfection-Turn in for Dollars!

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Name: ______________________________

Date:

Homeroom:

Mrs. Petrozzi: (614) 725-9693

7th Grade Math:

Unit: Skills for Success

Packet 6: Adding and Subtracting Decimals

Redo: Score: ________/5 _________% DNG A B C D F

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Help?!See Pages 2-3!

Directions: First, annotate each problem. Second, solve the problem. Finally, write your answer as a complete sentence.

1. Kenny ran 2.59 miles and then he biked 5.6 miles. How far did he go?

2. Sidney bought 6.3 ounces of flour and she used 2.7 ounces of it to make biscuits. How much is left?

3. Isabella bought two records for $13.76. She paid with a $20.00 bill. How much change should she get back?

12Help?!See page 4

Name: ______________________________

Date:

Homeroom:

7th Grade Math:

Unit: Skills for Success

Packet 6: Adding and Subtracting Decimals

Directions: Answer the following questions. When you are finished, flip this page over and assign yourself to your independent reading book.

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Self-Assessment: _______ Test-Ready _______ More Practice ________ Help!

Mastery: ___________/5 Mastered Progressing Not Mastered

The Hamburger Hut Menu (Sales Tax Inlcuded):Beverages:

Milk……………………………………………………$0.75Grapefruit Juice…………………………………..…....$1.25Orange Juice…………………………………………..$1.25Coffee…………………………………………………$1.00Cola…………………………………………………...$1.55Root Beer.…………………………………………….$1.55Iced Tea……………………………………………….$1.30Hot Chocolate……………………………….……….$2.00Milk Shake…………………………………...………...$2.55Food:

Bacon and Eggs……………………………………….$6.55Ham and Eggs………………………………………....$6.65Jumbo Burger…………………………………………$7.85Hut Burger……………………………………………$8.05Avocado Burger………………………………………$8.15Patty Melt……………………………………………..$7.90Hot Turkey Sandwich……………………………..…..$7.70Cheese Sandwich……………………………………...$6.70Tomato Soup…………………………………………$5.55Onion Rings…………………………………………...$3.75Steak Dinner………………………………………....$12.90Dessert

Cherry Pie…………………………………………….$3.35Chocolate Cake………………………………………$4.45

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