Evaluating expressions
Which of the following expressions is NOT equivalent to 5 + (-13) ?
A. 5 - 13
B. - 13 + 5
C. 5 - (-13)
A. 5 - 13 = -8
B. - 13 + 5 = -8
*C. 5 - (-13) = 18*
What integer represents a withdrawal of $45 from a bank account?
A. 45
B. -45
B. -45
Evaluate:
[2(8)] - 5(-7)
51
Which expression represents the following situation: Find 7 on the number line and move 8 spaces to the left. The stopping point of -1 is the sum of this expression.
A. 7 + 8
B. 7 + (- 8)
C. 7 - (-8)
A. 7 + 8 = 15
*B. 7 + (- 8) = -1 *
C. 7 - (-8) = 15
Write the sum of 15 and -5 1/5 as a:
Decimal:
Mixed number:
Improper fraction:
9.8 , 9 4/5, 49/5
Sam and Yara are playing a card game. The object of the game is to get rid of as many cards as you can. At the end of the game, Sam still has 3 cards. If the value of each card is -16 points, how many points does Sam have?
Sam has -48 points.
Evaluate:
2 (-10) + 5[3(-7)]
-125
Gia bought 35 feet of yarn at Michael's. The yarn cost $1.15 per foot, including sales tax. If Gia paid with a $50 bill, how much change should she have received?
$9.75
Evaluate the following expression:
(-4.5 + 0.75) ÷ (-1.5)
2.5
The temperature on a summer day was 94º Fahrenheit. At night, the temperature decreased by 14º Fahrenheit. What is the new temperature, in degrees Fahrenheit?
80º
- (-55/11) + 12 - 3
14
Robert earns $13.75 per hour at a coffee shop. On Saturday, he spent 3 ½ hours working at the counter, 2 ½ hours at the drive through window and 1 hour cleaning. What was Robert's total earnings for Saturday?
$96.25
Evaluate the following expression:
(-10)(-4)(3)(-5)
-600
A fish's elevation decreased from 50 feet below sea level to 98 feet below sea level in 8 minutes. Which integer represents the fish's change in elevation per minute?
-6 feet per minute.
Evaluate:
( -4 + 9) + 5 [ 2 ( 18 ÷ 2 ) ]
95
Gio evaluated -(-27/3) and wrote that it is equivalent to -9. Fill in the blanks to make the statement TRUE.
Gio is __________ because -27 ÷ 3 = _______ , and the opposite of a negative is ____________. So the final answer is _____________.
Gio is INCORRECT because -27 ÷ 3 =-9 , and the opposite of a negative is POSITIVE. So the final answer is POSITIVE 9.
Evaluate the following expression and write your final answer as a decimal.
[ (4/5) - .0125 ] / (1/8)
6.3
Liam had $1,075.00 in his bank account. He withdrew $250.00 each day on Monday, Tuesday, and Wednesday. Liam got paid on Friday and deposited $150.00 into his bank account. Then on Saturday, he used his debit card for two purchases: one for $160.00 and one for $220.00. What integer represents his current bank account balance after all his transactions?
95
2(-15) + 3[4(-9)] + [2(8)] - 5(-7)
-87
Which situation results in a final value of zero?
A. The temperature after a decrease of 4℉ from a temperature of -4℉
B. The height of an airplane after taking off from ground level and rising 2,000 feet
C. The amount of money received in change after making a $40 purchase with a $50 bill
D. The distance above sea level after increasing 84 meters from a depth of 84 meters below sea level
A. -8
B. 2,000
C. 10
*D. 0*