Rational Numbers Check Point 2.3

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Tags

CCSS.5.NBT.A.2

Front

How do you divide a whole number by a fraction?

Back

To divide a whole number by a fraction, multiply the whole number by the reciprocal of the fraction.

Front

What is the reciprocal of a fraction?

Back

The reciprocal of a fraction is obtained by flipping the numerator and denominator.

Front

If you have 21 feet and want to cut it into pieces of 3/8 feet, what operation do you use?

Back

You use division: 21 ÷ (3/8).

Front

How do you find out how many people can eat a certain amount of pizza if each person eats a fraction?

Back

Divide the total amount of pizza by the amount each person eats.

Tags

CCSS.5.NF.B.7B

CCSS.5.NF.B.7C

Front

What is the formula to calculate total cost based on unit price and quantity?

Back

Total Cost = Unit Price × Quantity.

Tags

CCSS.6.RP.A.3B

Front

How do you calculate the total amount deducted from a monthly payment over several months?

Back

Multiply the monthly deduction by the number of months.

Tags

CCSS.7.EE.B.3

Front

What is the cost of driving a rental car based on mileage?

Back

Cost = Mileage × Charge per mile.

Tags

CCSS.HSF.LE.B.5

Front

If a car rental company charges $0.07 per mile, how much would it cost to drive 42 miles?

Back

Cost = 42 miles × $0.07/mile = $2.94.

Tags

CCSS.6.NS.B.3

Front

What is the total number of 0.25 pound hamburgers that can be made from 2.5 pounds of ground beef?

Back

Total hamburgers = 2.5 pounds ÷ 0.25 pounds/hamburger = 10 hamburgers.

Tags

CCSS.6.NS.B.3