Equivalent Expressions
What is equivalent to: –15 – (–30)?
a) 15 + 30
b) 15 + (–30)
c) –15 + (–30)
d) –15 + 30
d) –15 + 30
What is the decimal equivalent of the fraction 3/8?
a)0.375
b) 0.83
c) 0.833
A: 0.375
A polar bear is swimming 20 feet below sea level and dives another 9 feet. What is the bear’s elevation?
-20 - 9 = -29 feet
What is the difference between an actual temperature of 15°F and a wind chill of -10°F? Show all work.
15 - (-10) = 25 degrees
Find the sum: 7 + (-3).
4
Which expression is equal to: 5 - (–7)?
a) 5 + 7
b) 12
c) 5 - 7
d) 5 + (–7)
a) 5 + 7
Convert 1/4 to a decimal.
0.25
The temperature yesterday was 15°F. If it dropped 7 degrees, what is the current temperature?
15 - 7 = 8 degrees
What is the difference between -5°F and 10°F?
10- (-5) = 15 degrees
Calculate: 8 - 5 + (-2).
1
Rewrite: -8 - (3)
-8 + (-3)
What is 0.45 as a fraction in SIMPLEST FORM
9/20
If a submarine is 30 feet below sea level and rises 15 feet, what is its new depth?
-30 + 15 = -15 feet
Show how to find the difference: 5 - (-3).
5 + 3 = 8
KAO
What is the difference: 10 - 3 + 1?
8
What is the equivalent expression for: –10 - (–5)?
-10 + 5
Find the decimal form of 7/8.
0.875
A hiker starts at 10 ft and drops to -5 ft What is the elevation change?
10 - (-5) = 15 feet
Show your work for: 6 + (-4) - 2.
0
Find the sum: -4 + (-6) + 10.
0
ADDITIVE INVERSE!
What is equivalent to: 12 - (–4)?
12 + 4
What is the decimal equivalent of 2/5?
0.4
If the temperature is 25°F and drops by 20°F, what is the new temperature?
25 - 20 = 5 degrees
Show how to add: -8 + 4 + (-2).
-6
Calculate: 5 - (-5) + 2.
12