Quiz Review
Kareem heats a beaker of water to a boil. Then he records that the water temperature decreases from 100°C to 19°C in 5 2/5 minutes. What was the average change in temperature each minute
-15°C
5 + (-23)
What is -18?
This process is used when solving subtraction problems (hint: it goes by two names)
What is "slash slash" or "keep, change, change"?
15 x - 4 =
What is -60?
-150 ÷ 25 =
What is -6
To win a trivia game, Nevan must score 90 points. Each correct answer is worth 1 3/4 points, and each incorrect answer is worth -1/4 points. If he gets 58 questions correct and 22 questions incorrect, does Nevan win? How many points does he score?
Yes; He scores 96 points.
42 + (-5) + 15
What is 52?
0.95 - 0.67 - 1.3 =
What is -1.02?
- 2/5 x - 6/8 =
What is 3/10?
-3/4 ÷ (-5/6) =
What is -9/10?
At the beginning of the month, Kimberly had $65.78. Since then, she has received three payments of $32.50 from her babysitting job. Kimberly’s 2 sisters each helped her babysit once during the month, so Kimberly paid them each $8.75. If Kimberly did not spend any money, how much money does she have now?
$145.78
0.57 + (-2.345) + (-0.86) =
5/2 - (-4/5) - 2/3 =
What is 2 19/30?
0.75 x - 4.5 =
What is 3.375?
-5/6 ÷ (1/2 x 2/3) =
What is -2 1/2?
A scuba diver is swimming 15 feet below the water’s surface. The diver swims up slowly at 0.5 feet per second for 4 seconds and then stops to look at an eel. Finally, the diver swims up for 3 more seconds at 0.4 feet per second. What is the diver’s new depth?
-11.8 feet
- 5/3 + (-5/6) + (-5/9) =
What is -1 17/18?
0.17 - (-1.5) - 4.3 =
What is -2.63?
-3.2 x 4/5 =
What is -2.56?
159.12 ÷ (-3.4) =
What is -46.8?
During 7 1/2 months of hibernation, a black bear lost 64.4 pounds. On average, what was the bear’s weight change per month? Round to the nearest tenth.
-8.6 pounds
3/5 + 0.75 + (-1 1/4)
What is -1/10?
- 1.5 - 3/5 - (-5/4) =
What is -2 3/20?
What is -0.15 x 3/2 x 0.25
What is -0.05625?
-49.14 ÷ (-6.3) =
What is 7.8?