Quiz about 7th-MULTIPLYING AND DIVIDING RATIONAL NUMBERS

Question 1

Divide.

Accepted Answer

-5/8

Answer

-1/10

Answer

-2/20

Answer

5/8

Question 2

Multiply.

Accepted Answer

-7  1/5

Answer

-4/45

Answer

-8

Answer

7

Question 3

Mia took $21 with her to the mall. At the music store she spent 2/3 of her money on Beyonce's CD and 1/4 of what was left she spent on a soda. How much money does Mia have after she bought the soda?

Accepted Answer

$5.25

Answer

$21

Answer

$7

Answer

$14

Question 4

A diamond merchant received a shipment of 6 1/4 pounds of diamonds. He divided the diamonds into 2 equal lots and sold them to jewelers for making rings and necklaces. What was the weight of the diamonds in each lot?

Accepted Answer

3 and 1/8 lbs

Answer

12 and 1/2 lbs

Answer

25/4 lbs

Answer

0.32 lbs

Question 5

Multiply.

Accepted Answer

-8/21

Answer

28/54

Answer

-2  7/54

Answer

-1

Question 6

Multiply

-3(-6.2)

Accepted Answer

18.6

Answer

1.86

Answer

-1.86

Answer

-18.6

Question 7

Question 7.

Accepted Answer

7

Answer

9

Answer

8

Answer

6

Question 8

Question 8.

Accepted Answer

-2/5

Answer

-1/8

Answer

11/56

Question 9

3) Four friends split equally a lunch bill of $36.96. How much did each person pay?

Accepted Answer

$9.24

Answer

$159.86

Answer

$9.14

Answer

$2.94

Question 10

6) Derrick plants three rows of bulbs that cost $0.79 each. How much does he spend on bulbs?
(hint: two R.O.C boxes, one for the price of 1 row, then a second for 3 rows)

Accepted Answer

$116.13

Answer

$38.71

Answer

$39.71

Answer

$2.37

Question 11

7) Yin's cellphone plan costs $30 a month. She used 750 minutes in May. What was her cost per minute.

Accepted Answer

$0.04

Answer

$0.40

Answer

$2.25

Answer

$0.25

Question 12

Question 12.

Accepted Answer

3 17/20

Answer

-1 1/2

Answer

1 1/2

Answer

-3 17/20

Question 13

Question 13.

Accepted Answer

-10 14/15

Answer

3

Answer

10 14/15

Answer

-3

Question 14

Solve:
(-2)(-1)(-3)(-4)(-1)

Accepted Answer

-24

Answer

-11

Answer

24

Answer

11

Question 15

-4(-1)(-2)

Accepted Answer

-8

Answer

8

Answer

-7

Answer

7

Question 16

(-2)(-2)(-2)(-2)(-2)

Accepted Answer

-32

Answer

32

Answer

-10

Answer

-16

Question 17

Multiply.

Accepted Answer

-8/21

Answer

28/54

Answer

-2  7/54

Answer

-1

Question 18

Multiply.

Accepted Answer

35/9

Answer

-4

Answer

11 2/3

Answer

0

Question 19

2.5 x (-1.2)

Accepted Answer

-3

Answer

-3.7

Answer

3.7

Answer

3

Question 20

-4.2 x -5

Accepted Answer

21

Answer

-21

Answer

-9.2

Answer

-1.2

Question 21

Multiply.

Accepted Answer

-8/21

Answer

28/54

Answer

-2  7/54

Answer

-1

Question 22

6.2(-0.7)

Accepted Answer

-4.34

Answer

4.34

Answer

-43.4

Answer

434

Question 23

Multiply.

Accepted Answer

-8/21

Answer

28/54

Answer

-2  7/54

Answer

-1

Question 24

Find the product.  Then, simplify.

Accepted Answer

1/12

Answer

2/24

Answer

3/24

Answer

3/16

Question 25

Multiply. Write your answer in simplest form.

Accepted Answer

5/6

Answer

27/40

Answer

-27/40

Answer

-5/6

Question 26

When multiplying or dividing a NEGATIVE and POSITIVE number your result will be...

Accepted Answer

Negative

Answer

Positive

Answer

Depends on which is bigger.

Answer

None of the above

Question 27

When multiplying or dividing a NEGATIVE and NEGATIVE number your answer will be...

Accepted Answer

Positive

Answer

Negative

Answer

Depends on the largest number

Answer

None of the above

Question 28

Sharon wants to make cookies for her class bake sale.  She found a recipe that calls for 2/3 cups of flour for each batch of cookies.  How many batches can she make using 12 cups of flour?

Accepted Answer

8

Answer

12

Answer

6

Answer

4

Question 29

Mark won a gift card for correctly solving the most problems during the month of September. The gift card had balance of $40. He went to the mall with his friends and bought a t-shirt for $15, ice cream for 3.50, and a pair of Nike Elite socks of $16.05. Does he have enough money and the card for his purchases? What was his balance?

Accepted Answer

yes; $5.45

Answer

yes; $34.55

Answer

no; -$3.50

Answer

no; -$5.45

Question 30

The price of Quiktrip stock dropped a total of $372.33 over a 7 day period. The stock dropped the same amount each day. What amount did they lose each day? (hint : amount should be negative)

Accepted Answer

-$53.19

Answer

-$5.32

Answer

$53.19

Answer

-$365.33

Question 31

Timothy, James, and Sharon was playing a video game that awards black and red chips. Each black ship is worth 1.5 points. Each red chip is worth -0.5 points. If Sharon has 10 black chips and 29 red chips, what is her total score?

Accepted Answer

0.5

Answer

29.5

Answer

-29.5

Answer

-0.5

Question 32

-8 - (-4) =

Accepted Answer

-4

Answer

12

Answer

-12

Answer

4

Question 33

Determine the product: -3 X (3)

Accepted Answer

-9

Answer

9

Answer

1

Answer

-1

Question 34

Determine the product: 2/9 X (-6/11)=

*Simplify your answer!

Accepted Answer

-4/33

Answer

-12/99

Answer

12/99

Answer

4/33

Question 35

The manager at Chick-fil-A estimated that the restaurant will sell 600 chicken sandwiches last week. They actually sold 550 sandwiches. Calculate the percent error.

Accepted Answer

-9.1

Answer

8.3

Answer

-8.3

Answer

9.1

Question 36

Question 36.

Accepted Answer

-5/8

Answer

-1/10

Answer

-2/20

Answer

5/8

Question 37

Question 37.

Accepted Answer

2/3

Answer

-2/3

Answer

-3/8

Answer

3/8

Question 38

Bobby is making pizza for his friends. If one pizza requires 1 egg, 2 1/3 cups of flour, 2 TBSP of salt and 1/4 cup of basil, how many cups of flour will Bobby need to make 3 1/2 Pizzas?

Accepted Answer

8 1/6 cups of flour

Answer

8 cups of flour

Answer

14/21 cups of flour

Question 39

Mrs. Wije made 4 3/4 cups of Chocolate Chex Mix for her children's sleepover. She wants to split the Chocolate Chex Mix into 1/2 cup servings so that her children & friends can share. How many WHOLE bags of Chocolate Chex Mix will she have after she divides it up?

Accepted Answer

9 whole bags

Answer

9 1/2 whole bags

Answer

38/4 whole bags

Answer

38 whole bags

Question 40

Loraine has a square vegetable garden with a side length of 8 1/2 yards. She is going to plant an equal amount of the area of the garden for each of the following vegetables: kale, onions, and broccoli. How many square yards of the garden will the kale get?

Accepted Answer

24 1/12

Answer

8 square yards

Answer

2 3/4 square yards

Answer

1 1/2 square yards

Question 41

Which of the following expressions results in a decrease when multiplied? Check ALL that apply.

Accepted Answer

15 x 0

Accepted Answer

2 x 2/3

Answer

1 x 5/2

Answer

3 x 4/4

Question 42

Solve: 24 x 1/2

Accepted Answer

12

Answer

24 1/2

Answer

6

Answer

48

Question 43

-2.4(-1.55)

Accepted Answer

3.72

Answer

1.43

Answer

-1.43

Answer

-3.72

Question 44

Convert to decimal & classify as terminating, non-terminating, repeating or non-repeating. 4/7

Accepted Answer

.571428.......non-terminating, repeating

Answer

.571428.......terminating non-repeating

Answer

.3547........terminating non-repeating

Answer

.3547........non-terminating non-repeating

7th-MULTIPLYING AND DIVIDING RATIONAL NUMBERS

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