What does the P in PEMDAS stand for?
Parentheses
What is an integer?
A positive whole number, negative whole number, or zero.
Solve:
5 + (−2)
3
Rewrite without double signs:
8 − (−3)
8+3
The temperature is 4°F. It drops 6 degrees. What is the new temperature?
−2°F
What does the E in PEMDAS stand for?
Exponents
Is −8 an integer?
YES
Solve:
−6 + 10
4
Solve:
6 − (−4)
10
A submarine is at −20 feet. It rises 8 feet. What is its new position?
−12 feet
Solve:
8 + 3 × 4
20
Which is greater: −3 or −7?
-3
Solve:
−7 + (−8)
Solve:
−5 − (−7)
2
You have $15 and spend $22. If negative numbers represent money owed, what is your balance?
-$7
Solve:
18 ÷ 3 + 2 × 5
16
What is the opposite of −12?
12
Solve:
9 − 14
-5
Solve:
10 − (+6) − (−3)
7
The temperature starts at −6°F, rises 11 degrees, then drops 4 degrees. What is the final temperature?
1°F
Solve:
24 ÷ (2 + 4) × 3 + 5
17
Put these integers in order from least to greatest: 4, −9, 0, −2, 7
−9, −2, 0, 4, 7
Solve:
−12 − 9
-21
Solve:
−8 − (−5) + (−6)
-9
An elevator starts on floor 3. It goes down 7 floors, up 4 floors, then down 3 floors. What floor does it end on?
−3