The Mental Math Quiz

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This quiz will take a look at 35 math-related questions that involve various mathematical concepts. Some of these include word problems, addition, subtraction, exponents, square roots and cubed numbers.

Percentages are also involved in this quiz. For example, do you know what 20% of 20 is? An easier way to look at this is 10% of 20, which is 2. When you take 10% of a number, you're just removing that 0 from the end. So when you take away 0 from the end of 20, you get 2, which is 10% of 20. Now to find out what 20% of 20 is, just double that 2 number to get 4. Thus, 20% of 20 is 4.

We'll also take a look at some exponents in this quiz. For instance, do you know what 3³ is? One way to look at this problem is like this: 3(3)(3), which is 27. To cube a number means to multiply that number three times. This is also similar to squaring a number, which is done with the symbol: ². To square a number means to take a number and multiply it by itself. For example, 2² is 4, since 2(2) is 4.

Now that the warm-up is done, it's time to sharpen your math skills with this mental math quiz!

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Do you know what the square root of 144 is?

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What is 6 multiplied by 8?

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What is 50 divided by 2?

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Can you guess what the cube root of 27 is?

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Do you think you know what 10² is?

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Do you know what 2³ is?

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What is 27 + 19?

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Try and guess what 52 - 23 is!

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What is 0 divided by 1?

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What is 2 divided by 0?

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Can you guess what -1 + 1 equals?

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What is -20 divided by -2?

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What is -4 multiplied by 9?

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Do you think you know what -2 - (-9) is?

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Try and guess what (-10 +2)/2 is!

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What is (2 + 1)/(0 + 1)?

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What is (2 -1)³?

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What is the square root of 0?

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Do you know what the square root of -1 is?

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Try and guess what (-2)² is!

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Think you can figure out what 20% of 50 is?

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What is 5% of 10?

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Can you figure out what 4² + 3² is?

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What is 3³ + 1³?

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Can you guess what 1,256,498 divided by 1 is?

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Sally has two apples, three oranges and one kiwi. If I take two oranges away from her, how many pieces of fruit does she have now?

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An item at a store costs $2.10. If I give the cashier a $5 bill, how much change can I expect back?

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An item at a store costs $20, but I have a coupon for 10% off. How much does the item cost now?

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It's 9:00 now. What time will it be 3 hours and 14 minutes from now?

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It's 3:30 now. What time was it one hour and 28 minutes ago?

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Try and solve this problem: (2+2)² - (1-1)³

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What is (√100)²?

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What is √25 + √16?

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What is 7 times 7?

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What is the answer to this problem: (2³)/(2²)?

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