## At A Glance

### Order of Operations Quiz (ex.1)

Check out Bas Rutten's Liver Shot on MMA Surge: http://bit.ly/MMASurgeEp1 In this video, Mahalo math expert Allison Moffett gives you a quiz to test your knowledge of order of operations. Question 1 --------------------------------------------------------------------- Using order of operations, do the following problem: 5 x 7 - 4 + 3 ? 1. 17 2. 40 3. 24 4. 37 If You Chose #1 --------------------------------------------------------------------- You may have added five and seven instead of multiplying them. Here's how to get the correct answer: Parentheses come first, but since there are none in this problem, let's move on to exponents. Three squared is nine, so we are left with 5 x 7 - 4 + 9. Then we do multiplication and division from left to right. FIve times seven is 35, so now we have 35 - 4 + 9. Lastly, we must do all addition and subtraction from left to right. So 35 minus four is 31, and 31 plus nine is 40. If You Chose #2 --------------------------------------------------------------------- You're correct! Check your work below: Parentheses come first, but since there are none in this problem, let's move on to exponents. Three squared is nine, so we are left with 5 x 7 - 4 + 9. Then we do multiplication and division from left to right. FIve times seven is 35, so now we have 35 - 4 + 9. Lastly, we must do all addition and subtraction from left to right. So 35 minus four is 31, and 31 plus nine is 40. If You Chose #3 --------------------------------------------------------------------- You may have subtracted four from seven first and then finished the equation. Here's how to get the correct answer: Parentheses come first, but since there are none in this problem, let's move on to exponents. Three squared is nine, so we are left with 5 x 7 - 4 + 9. Then we do multiplication and division from left to right. FIve times seven is 35, so now we have 35 - 4 + 9. Lastly, we must do all addition and subtraction from left to right. So 35 minus four is 31, and 31 plus nine is 40. If You Chose #4 --------------------------------------------------------------------- You may have done three times two, which is six, instead of squaring three, which is nine. Here's how to get the correct answer: Parentheses come first, but since there are none in this problem, let's move on to exponents. Three squared is nine, so we are left with 5 x 7 - 4 + 9. Then we do multiplication and division from left to right. FIve times seven is 35, so now we have 35 - 4 + 9. Lastly, we must do all addition and subtraction from left to right. So 35 minus four is 31, and 31 plus nine is 40. Question 2 --------------------------------------------------------------------- Using order of operations, solve the following problem: 8 / (3 +1) + 6 x 2 1. 8/5 2. 2/5 3. 14 4. 47/3 If You Chose #1 --------------------------------------------------------------------- You may have added three plus one plus six first. Here's how to get the correct answer: First, solve what's in the parentheses. Three plus one is four, so we're left with 8 / 4 + 6 x 2. Since there are no exponents, do all multiplication and division from left to right. So eight divided by four is two and six times two is twelve. We're left with 2 + 12, which is 14. If You Chose #2 --------------------------------------------------------------------- You may have?added three plus one plus six first. Here's how to get the correct answer: First, solve what's in the parentheses. Three plus one is four, so we're left with 8 / 4 + 6 x 2. Since there are no exponents, do all multiplication and division from left to right. So eight divided by four is two and six times two is twelve. We're left with 2 + 12, which is 14. If You Chose #3 --------------------------------------------------------------------- You're correct! Check your work below: First, solve what's in the parentheses. Three plus one is four, so we're left with 8 / 4 + 6 x 2. Since there are no exponents, do all multiplication and division from left to right. So eight divided by four is two and six times two is twelve. We're left with 2 + 12, which is 14. If You Chose #4 --------------------------------------------------------------------- You may have divided eight by three first instead of solving what's in the parentheses first. Here's how to get the correct answer: First, solve what's in the parentheses. Three plus one is four, so we're left with 8 / 4 + 6 x 2. Since there are no exponents, do all multiplication and division from left to right. So eight divided by four is two and six... Read more by visiting our page at: http://www.mahalo.com/order-of-operations-quiz/
Length: 00:50

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