| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.72 |
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This property states taht the order of addition or multiplication does not mater. For example, 2 + 5 and 5 + 2 are equivalent.
commutative |
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PEDMAS |
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distributive |
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associative |
The commutative property states that, when adding or multiplying numbers, the order in which they're added or multiplied does not matter. For example, 3 + 4 and 4 + 3 give the same result, as do 3 x 4 and 4 x 3.
Which of these numbers is a factor of 56?
| 33 | |
| 7 | |
| 47 | |
| 25 |
The factors of a number are all positive integers that divide evenly into the number. The factors of 56 are 1, 2, 4, 7, 8, 14, 28, 56.
Find the average of the following numbers: 11, 5, 10, 6.
| 3 | |
| 12 | |
| 8 | |
| 7 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{11 + 5 + 10 + 6}{4} \) = \( \frac{32}{4} \) = 8
How many hours does it take a car to travel 280 miles at an average speed of 40 miles per hour?
| 6 hours | |
| 3 hours | |
| 7 hours | |
| 4 hours |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)Solving for time:
time = \( \frac{\text{distance}}{\text{speed}} \)
time = \( \frac{280mi}{40mph} \)
7 hours
If a car travels 240 miles in 6 hours, what is the average speed?
| 40 mph | |
| 15 mph | |
| 30 mph | |
| 20 mph |
Average speed in miles per hour is the number of miles traveled divided by the number of hours:
speed = \( \frac{\text{distance}}{\text{time}} \)