Adding/subtracting Integers
What is 5 + (–3)?
2
(–3) × 2 = ?
-6
Plot (–3, 2) on a coordinate plane. Which quadrant is it in?
Quadrant II
Reflect (3, 4) over the x-axis.
(3, –4)
Which is greater: –2 or –5?
–2
What is –6 + (–4)?
-10
(–8) ÷ (–2) = ?
4
What is (–4) + (–9)?
–13
Reflect (–2, 5) over the y-axis.
(2, 5)
Put in order from least to greatest: –7, 3, –4, 0
–7, –4, 0, 3
Evaluate: |–8| + (–5).
3
A scuba diver descends 4 meters per minute for 3 minutes, then ascends at half that rate for 2 minutes. What is her final position relative to the surface?
–6 meters
Plot (–3, 2). Reflect it over the y-axis, then move it down 6 units. What are the new coordinates?
(3, –4)
A point (–6, –3) is reflected over the x-axis, then translated up 4 units. What are the final coordinates?
(–6, 1)
Order these numbers from least to greatest: –15, 4, 0, –9, –3, 2.
–15, –9, –3, 0, 2, 4
The temperature dropped 12°, then rose 7°, and dropped 5° again. What’s the total change in temperature?
-10
(–6) × (–4) × (3) = ?
72
Multiply: (–9) × 5 ÷ (–3)
15
Point A(–3, 4) is reflected over the y-axis to create point B. Then, point B is reflected over the x-axis to create point C.
What are the coordinates of C, and in which quadrant does it lie?
C(3, –4) — lies in Quadrant IV
Arrange these numbers from least to greatest:
–1/2, –75%, 0.25, –0.8, 2/3, –3/4, 50%
–0.8, –75%, –3/4, –1/2, 0.25, 50%, 2/3
A diver is 15 ft below sea level. She rises 8 ft, then descends 6 ft. What is her final position?
-13
A number is multiplied by –4 and then divided by –2 to get 10. What was the original number?
5
A plane travels 6 miles east (positive x) and 4 miles south (negative y). What are its coordinates?
(6, –4)
Reflect (–2, –5) over both axes.
(2, 5)
The temperature dropped from 8° to –4°. How many degrees did it change?
12°