Unit 5 Review: Rational Numbers

Hint: Simplify!

• Rational Numbers

• Integers

• Whole Numbers

• Natural Numbers

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7.2

Ariel needed 14.75 cups of sugar to make cookies for her whole school. She has 3.75 cups from one bag and 8.75 from another bag. How many more cups of sugar does Ariel need in order to make all the cookies?

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7.3.A

7.3.B

Mrs. Vance is purchasing 2.5 pounds of ham that costs $2.60 per pound. How much change should Mrs. Vance receive if she gives the cashier $20.00?

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7.3.A

7.3.B

Delani, Derek, and David gather and sell pecans for their mother. Delani gathers 2.5 pounds of pecans, Derek collects 3.25 pounds, and David harvests 4⅖ pounds. If they place all the pecans in one basket and each sells the same amount, how many pounds would each person sell?

Round your answer to the hundredths place.

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7.3.A

7.3.B

Which graphic organizer correctly groups the following numbers? 

3.4             -2                3              -1.2 

• 
• 
• 
• 

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7.2

STUCO has 25 members. They pay for their t-shirts that cost $12.30. The 15  7th grade members paid during their meeting on Monday. The remaining STUCO members paid on Tuesday. How much money did Mrs. Gibson collect on Tuesday?

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7.3.A

7.3.B

Rebecca needs 10½ yards of fabric to make a quilt. She has one piece of fabric that is 2½ yards and another piece of fabric that is 4¼ yards. How many more yards of fabric does Rebecca need to make the quilt? 

• 4¼ yd

• 3¼ yd

• 3¾ yd

• 6¾ yd

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7.3.A

7.3.B

The Venn diagram represents the relationship between integers and whole numbers. Set A represents integers. Set B represents whole numbers.

Which number would be an element of the set of Integers but not an element of the set of Whole Numbers?

• 0

• -3

• 5

• ½

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7.2

Mrs. Armstrong paid $14.95 for a box of markers and $0.55 each for 12 stickers. What was the total cost, in dollars and cents, of the box of markers and stickers?

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7.3.A

7.3.B

Draw your own real number system diagram. Don't forget to add labels.

Bonus points for adding number examples!

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7.2