| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.30 |
| Score | 0% | 66% |
This property states taht the order of addition or multiplication does not mater. For example, 2 + 5 and 5 + 2 are equivalent.
distributive |
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PEDMAS |
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associative |
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commutative |
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.
Simplify \( \sqrt{27} \)
| 3\( \sqrt{3} \) | |
| 6\( \sqrt{3} \) | |
| 2\( \sqrt{3} \) | |
| 9\( \sqrt{6} \) |
To simplify a radical, factor out the perfect squares:
\( \sqrt{27} \)
\( \sqrt{9 \times 3} \)
\( \sqrt{3^2 \times 3} \)
3\( \sqrt{3} \)
| 1 | |
| 1.8 | |
| 3.6 | |
| 7.2 |
1
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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4 x 3 |
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3 x 2 x 1 |
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.
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 15% off." If Alex buys two shirts, each with a regular price of $18, how much money will he save?
| $2.70 | |
| $5.40 | |
| $0.90 | |
| $9.00 |
By buying two shirts, Alex will save $18 x \( \frac{15}{100} \) = \( \frac{$18 x 15}{100} \) = \( \frac{$270}{100} \) = $2.70 on the second shirt.