| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
This property states taht the order of addition or multiplication does not mater. For example, 2 + 5 and 5 + 2 are equivalent.
PEDMAS |
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commutative |
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associative |
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distributive |
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.
4! = ?
5 x 4 x 3 x 2 x 1 |
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4 x 3 x 2 x 1 |
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3 x 2 x 1 |
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4 x 3 |
A factorial has the form n! and is the product of the integer (n) and all the positive integers below it. For example, 5! = 5 x 4 x 3 x 2 x 1 = 120.
8 members of a bridal party need transported to a wedding reception but there are only 2 2-passenger taxis available to take them. How many will need to find other transportation?
| 4 | |
| 55 | |
| 1 | |
| 6 |
There are 2 2-passenger taxis available so that's 2 x 2 = 4 total seats. There are 8 people needing transportation leaving 8 - 4 = 4 who will have to find other transportation.
| 3.5 | |
| 2.1 | |
| 1 | |
| 2.5 |
1
Solve 2 + (5 + 4) ÷ 3 x 5 - 22
| 1\(\frac{1}{2}\) | |
| 3\(\frac{1}{2}\) | |
| 13 | |
| 1\(\frac{4}{5}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
2 + (5 + 4) ÷ 3 x 5 - 22
P: 2 + (9) ÷ 3 x 5 - 22
E: 2 + 9 ÷ 3 x 5 - 4
MD: 2 + \( \frac{9}{3} \) x 5 - 4
MD: 2 + \( \frac{45}{3} \) - 4
AS: \( \frac{6}{3} \) + \( \frac{45}{3} \) - 4
AS: \( \frac{51}{3} \) - 4
AS: \( \frac{51 - 12}{3} \)
\( \frac{39}{3} \)
13