Adding/Subtracting
(-15) + 7
-8
(-8)(7)
-56
45 ÷ (-9)
-5
(-3)(-4) + 82
76
In his last football game, Pete the running back, carried the ball seven times with the following results: gained 2 yards, gained 1 yard, gained 0 yards, lost 3 yards, gained 34 yards, lost 1 yard, gained 16 yards. What was the total amount of yards Pete gained after his seven carries?
Pete gained 49 yards
8 - (-6)
14
(-11) x (-9)
99
(-99) ÷ (-3)
33
5 x (-9) ÷ (-3) x 7
105
The temperature at midnight was 19℃. It fell steadily by 3℃ every hour. What was the temperature at 7 a.m.?
At 7am, the temperature was -2℃
4 + (-3) + (-9)
-8
(-1) x (-3)2
-9
48 ÷ (-4) ÷ 3
-4
(-5)2 - (-7) + (-3) x 4
20
A scuba diver was collecting water samples from a lake. He collected samples at -5-m intervals starting at 5 m below the surface. If he collected the final sample at -35 m, how many samples did he collect?
He collected 7 samples
(-10) - (-16) - 8
-2
(-2)(-1)(1)(2)
4
(-60) ÷ (-10) ÷ (-2)
-3
62 + (-14) ÷ 2 - (-8)
37
A hang glider descends at 50 m/min for 3 minutes. It then catches an updraft and rises at 100 m/min for 2 minutes. What is the overall change in the hang glider's altitude over this 5-minute period?
The overall change in altitude is 50 m.
(-1) - (-1) + (-1) - 1
-2
(-2)3 x (-2)
16
(-24) ÷ 2 ÷ (-2) ÷ 2
3
6 x [(-3) + 14] - 33 ÷ 9 - 4
59
Len's car uses 11 L of gasoline per 100 km of city driving and 8 L of gasoline per 100 km of highway driving. One month, he drove 600 km in the city and 1500 km on the highways. How much gasoline did he use that month?
Len used 186 L of gasoline