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7th-MULTIPLYING AND DIVIDING RATIONAL NUMBERS

Total questions: 61

Worksheet time: 4hrs 54mins

Name
Class
Date
1.
Divide.
a)
-1/10
b)
-5/8
c)
-2/20
d)
5/8
2.
Multiply.
a)
-7  1/5
b)
-4/45
c)
-8
d)
7
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?
a)
$21
b)
$7
c)
$14
d)
$5.25
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?
a)
12 and 1/2 lbs
b)
3 and 1/8 lbs
c)
25/4 lbs
d)
0.32 lbs
5.
Multiply.
a)
28/54
b)
-8/21
c)
-2  7/54
d)
-1
6.

Multiply

-3(-6.2)

a)

1.86

b)

18.6

c)

-1.86

d)

-18.6

7.
( - ¼ ) ( ½ )
a)
-1/16
b)
- ⅛
c)
- ½
d)
⅛
8.
The Warriors won ⁸∕₉ of their games this season.  If they have played 54 games so far, then how many games have they won?
a)
48 games
b)
6 games
c)
40 games
d)
45 games
9.
a)
9
b)
8
c)
7
d)
6
10.
a)
-1/8
b)
11/56
c)
-2/5
11.
3) Four friends split equally a lunch bill of $36.96. How much did each person pay?
a)
$9.24
b)
$159.86
c)
$9.14
d)
$2.94
12.
4) Jade spent $37.60 on groceries. ⅘ of that total was spent on vegetables. How much was spent on other items
a)
$30.08
b)
$7.52
c)
$3.08
d)
$36.60
13.
5) Derrick's garden is 18 ½ feet long. He plants bulbs ⅜  of a foot apart. How many bulbs can Derrick plant in one row?
a)
49
b)
6
c)
19
d)
18
14.
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)
a)
$116.13
b)
$38.71
c)
$39.71
d)
$2.37
15.
7) Yin's cellphone plan costs $30 a month. She used 750 minutes in May. What was her cost per minute. 
a)
$0.40
b)
$2.25
c)
$0.04
d)
$0.25
16.
a)
-1 1/2
b)
1 1/2
c)
3 17/20
d)
-3 17/20
17.
⅚  x  -⅘
a)
9/11
b)
-⅔
c)
-9/11
d)
⅔
18.
a)
3
b)
10 14/15
c)
-3
d)
-10 14/15
19.
(-25) ÷ (-5)
a)
5
b)
-5
c)
-20
d)
-30
20.
Multiply
(5) • (–9) • (–2)
a)
90
b)
-45
c)
-90
d)
47
21.
Solve:
(-2)(-1)(-3)(-4)(-1)
a)
-11
b)
24
c)
-24
d)
11
22.
-4(-1)(-2)
a)
-8
b)
8
c)
-7
d)
7
23.
(-2)(-2)(-2)(-2)(-2)
a)
32
b)
-10
c)
-32
d)
-16
24.
Multiply.
a)
28/54
b)
-8/21
c)
-2  7/54
d)
-1
25.
Multiply.
a)
35/9
b)
-4
c)
11 2/3
d)
0
26.

2.8 × -2.706

a)

-13.3768

b)

0.094

c)

7.5768

d)

-7.5768

27.

2 5/8 × -1/3

a)

7/8

b)

8 1/8

c)

-7/8

d)

-1 5/24

28.

3 1/2 × -15/8

a)

1 1/5

b)

-6 9/16

c)

-1 1/5

d)

-7 67/80

29.

4 1/6 × -2

a)

2 1/6

b)

-8 1/3

c)

-7 1/3

d)

8 1/3

30.

-2 1/2 × -9/10

a)

6 1/8

b)

-1/28

c)

2 1/4

d)

-2 1/4

31.

2.5 x (-1.2)

a)

-3.7

b)

3.7

c)

3

d)

-3

32.

-4.2 x -5

a)

21

b)

-21

c)

-9.2

d)

-1.2

33.
Multiply.
a)
28/54
b)
-8/21
c)
-2  7/54
d)
-1
34.
6.2(-0.7)
a)
4.34
b)
-43.4
c)
-4.34
d)
434
35.
-20.16 × -4.5 =
a)
81.45
b)
90.72
c)
42.15
d)
99.15
36.
Multiply.
a)
28/54
b)
-8/21
c)
-2  7/54
d)
-1
37.
Find the product.  Then, simplify.
a)
2/24
b)
3/24
c)
1/12
d)
3/16
38.
Multiply. Write your answer in simplest form.
a)
27/40
b)
-27/40
c)
5/6
d)
-5/6
39.
When multiplying or dividing a NEGATIVE and POSITIVE number your result will be...
a)
Positive
b)
Negative
c)
Depends on which is bigger.
d)
None of the above
40.
When multiplying or dividing a NEGATIVE and NEGATIVE number your answer will be...
a)
Positive
b)
Negative
c)
Depends on the largest number
d)
None of the above
41.
     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?
a)
12
b)
8
c)
6
d)
4
42.
 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?
a)
yes; $34.55
b)
yes; $5.45
c)
no; -$3.50
d)
no; -$5.45
43.
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)
a)
-$53.19
b)
-$5.32
c)
$53.19
d)
-$365.33
44.
 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?
a)
29.5
b)
0.5
c)
-29.5
d)
-0.5
45.
-8 - (-4) =
a)
12
b)
-12
c)
4
d)
-4
46.

Determine the product: -3 X (3)

a)

9

b)

-9

c)

1

d)

-1

47.

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

*Simplify your answer!

a)

-12/99

b)

12/99

c)

-4/33

d)

4/33

48.

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.

a)

8.3

b)

-8.3

c)

9.1

d)

-9.1

49.
a)
-1/10
b)
-5/8
c)
-2/20
d)
5/8
50.
a)
-2/3
b)
2/3
c)
-3/8
d)
3/8
51.
-21  ÷ (-3) =
a)
-18
b)
7
c)
-3
d)
-7
52.

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?

a)

8 cups of flour

b)

8 1/6 cups of flour

c)

14/21 cups of flour

53.

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?

a)

9 1/2 whole bags

b)

38/4 whole bags

c)

9 whole bags

d)

38 whole bags

54.

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?

a)

8 square yards

b)

2 3/4 square yards

c)

24 1/12

d)

1 1/2 square yards

55.

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

a)

1 x 5/2

b)

3 x 4/4

c)

15 x 0

d)

2 x 2/3

56.

Solve: 24 x 1/2

a)

12

b)

24 1/2

c)

6

d)

48

57.

Solve: 24 ÷ 1/2

a)

12

b)

24 1/2

c)

1 1/2

d)

48

58.

-2.4(-1.55)

a)

1.43

b)

3.72

c)

-1.43

d)

-3.72

59.

Jaxon’s start-up business makes a profit of $450 during the first month. However, the company records a profit of -$40 per month for the next four months and profit of $100 for the final month. What is the total profit for the first six months of Jaxon’s business?

a)

$250

b)

$290

c)

$390

d)

$490

60.

Convert to decimal & classify as terminating, non-terminating, repeating or non-repeating: ⅓

a)

1.33333333.... terminating, non-repeating

b)

.33333333.... non-terminating, repeating

c)

1.333333.......non-terminating, repeating

d)

.333333333.....terminating, non-repeating

61.

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

a)

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

b)

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

c)

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

d)

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

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