Integers
What is the product of -1 and -8?
8
An expression is shown.
-3/7 × 5/7
What is the value of the expression?
-15/49
An expression is shown.
2(-5.25)
What is the value of the expression?
-10.5
Evaluate 4 - 5 × (-5).
29
Write positive, negative, or zero in each blank to complete true statements.
The quotient of two rational numbers with different signs is __________.
The quotient of two rational numbers with the same signs is __________.
The quotient of two rational numbers with different signs is negative.
The quotient of two rational numbers with the same signs is positive.
Evaluate mnp if m = -2, n = 3, and p = -5.
30
Evaluate y/z if y = -40 and z = -5.
8
A U.S. dime is 1.35 mm thick. How many centimeters long is a roll of dimes if the entire roll is worth $5?
_____ cm
6.75 cm
What is the value of 2/3(-9 + 3)?
-4
The school record in the 100-yard dash is 11.4 seconds. Malik ran the 100-yard dash in a time of 11 7/20 seconds. Did Malik set a new school record?
Yes, Malik set a new school record.
Indicate whether each product is positive or negative.
2(-7) = __________
-50(3) = __________
-4(-9) = __________
2(-7) = negative
-50(3) = negative
-4(-9) = positive
Divide. Write your answer as a fraction or mixed number in simplest form.
-15/14 ÷ (-9/7)
5/6
Nick has a total of 78 books in his collection. The average width of each book is 1.25 inches. He wants to buy shelves for his book collection. If each shelf if 20 inches wide, how many shelves will he need for the entire collection?
5 shelves
Evaluate the expression when b =7 and x = -5.
8x - b
-47
What is 11/12(-2.4)?
You may write your answer as a fraction, mixed number, or decimal.
-22/10, -11/5, -2 1/5, or -2.2
Rosita earned $325 for working 25 hours last week. What is her hourly rate?
$_____ per hour
$13 per hour
Find -4/5 ÷ 7/10. Express your answer as a mixed number in simplest form.
-1 1/7
Indicate whether each rational number represents a repeating decimal or a terminating decimal.
1/2 = __________ decimal
112.56 = __________ decimal
3.451... = __________ decimal
2/3 = __________ decimal
1/2 = terminating decimal
112.56 = terminating decimal
3.451... = repeating decimal
2/3 = repeating decimal
Evaluate f 2gh if f = -3, g = -5, and h = 2.
-90
Evaluate the following.
3/25 × 97.5
Write your answer as a decimal.
11.7
Note that a change can be an increase or a decrease. For an increase, use a positive number. For a decrease, use a negative number.
(a) Jessica pumped 2 gallons of water into her pool each minute for 18 minutes. What was the total change in the amount of water in the pool?
_____ gallons
(b) Abdul removed 64 fish from his pond over a period of 8 days. He removed the same number of fish each day. What was the change in the number of fish in the pond each day?
_____ fish
(a) 36 gallons
(b) -8 fish
Find 1 2/3 ÷ (-7/12). Express your answer as a mixed number in simplest form.
-2 6/7
Ralph spends $5.25 on corn seed packets. Each packet contains 25 seeds and costs $1.75. Ralph plans to plant 5 rows of corn with the same number of seeds in each row.
What is the greatest number of seeds that Ralph can plant in each row?
15 seeds per row
Evaluate the expression when c = 2/3 and x = -2/9.
-4x - c
Write your answer in simplest form.
2/9
What is the value of the expression a/k if a = 0.45 and k = -3/4?
Write your answer as a fraction in simplest form.
-3/5