Rational Numbers

Dividing Rational #'s

100

True or False (Once chance):  When you divide rational numbers, you should convert all mixed fractions to improper fractions.

True

200

8.2 divided by -4

-2.05

300

-2/3 divided by 1/2

-1 1/3

400

-8/9 divided by -4/9

2

500

1 3/8 divided by 1/8

11

Multiplying Rational #'s

100

True or False (One Chance).  When you multiply rational numbers the first step is to make sure you have one decimal number and one fraction.

False.

200

-7/10 x 1/4

-7/40

300

4.5 x 3

13.5

400

-15.6 x -2

31.2

500

12.80 x 6.3

80.640

Subtracting Rational #'s

100

Solve the problem

15 - (-8)

23

200

Mickey borrwed $75.00 from his grandparents to purchase a season pass to a theme park. After saving up his allowance for one month, he is able to pay them $24.65. How much does Mickey still owe his grandparents?

Mickey owes his grandparents $50.35 because he borrowed $75.00 and he paid $24.65.

300

-9/10 - (-3/10)

-6/10

400

-20 - 9

-29

500

10.8 - (-6.4)

17.2

Adding Rational #'s

100

-16 + (-8)

-24

200

6.25 + (-8.50)

-2.25

300

-6/11 + -3/11

-9/11

400

-1 1/2 + 2 7/10

1 1/5

500

-54.26 + (-15.42)

-69.68

Vocabulary

100

What goes in the blank?

Change each mixed number to an ________________.

Improper Fractions

200

What goes in the blank?

Multiply the digits as usual, ignoring the ________________ until the end where you count over to put it in the right spot.

Decimal Point

300

What goes in the blank?

We see __________ numbers frequently in real life.

Rational 

400

What goes in the blank?

When doing long division with decimals, bring the decimal directly above in the __________ (answer to a division problem).

Quotient

500

What goes in the blank?

Change the division to ______________.

Multiplication