HSPT Math : Concepts

Study concepts, example questions & explanations for HSPT Math

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Example Questions

Example Question #781 : Concepts

Select the equation that reflects the phrase below.

\displaystyle 76 divided by the product of \displaystyle 19 and \displaystyle 4

Possible Answers:

\displaystyle 76\div(19\times4)

\displaystyle 76\div19\times4

\displaystyle 76\div(19+4)

\displaystyle 76\div(19-4)

\displaystyle 76\div19+4

Correct answer:

\displaystyle 76\div(19\times4)

Explanation:

\displaystyle 76 needs to be listed first because that's the number that is getting divided. However, we need to do the multiplication problem first to find out what number we are dividing into \displaystyle 76, so we need to put the multiplication problem into parentheses. 

Remember, order of operations is PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction.  

Example Question #782 : Concepts

Select the equation that reflects the phrase below. 

Add \displaystyle 17 to the difference between \displaystyle 63 and \displaystyle 38

Possible Answers:

\displaystyle 63\div38+17

\displaystyle 63+38+17

\displaystyle 63-38+17

\displaystyle 63-38\times17

\displaystyle 63-38-17

Correct answer:

\displaystyle 63-38+17

Explanation:

Difference means the answer to a subtraction problem. Because we are adding a number to the difference, we need to do the subtraction problem first. Since we are adding and subtracting in this question, we do not need to use parentheses because with addition and subtraction you work the problem out from left to right. So first we have the subtraction problem, then we add

Remember, order of operations is PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction.  

Example Question #783 : Concepts

Select the equation that reflects the phrase below.

Add \displaystyle 19 to the product of \displaystyle 5 and \displaystyle 9

Possible Answers:

\displaystyle 19+5\times9

\displaystyle (19+5)\times9

\displaystyle 19-5\times9

\displaystyle 19+5\div9

\displaystyle 19+5+9

Correct answer:

\displaystyle 19+5\times9

Explanation:

Product means the answer to a multiplication problem. Becuase of our order of operation rules, the multiplication problem will come first, regardless of if it's listed first or second. Then we add. 

Remember, order of operations is PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction.  

Example Question #784 : Concepts

Select the equation that reflects the phrase below.

Find the sum of \displaystyle 16 and \displaystyle 20 and then divide \displaystyle 6

Possible Answers:

\displaystyle (16+20)\div6

\displaystyle (16-20)\div6

\displaystyle 16+20\div6

\displaystyle 16\times20\div6

\displaystyle (16\div20)\div6

Correct answer:

\displaystyle (16+20)\div6

Explanation:

When you are asked to find the sum that means we are going to add. Because the phrase says "then divide" we need to put the addition problem in parentheses because of our order of operations. Then we can divide. 

Remember, order of operations is PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction.  

Example Question #785 : Concepts

Select the equation that reflects the phrase below.

Divide the product of \displaystyle 12 and \displaystyle 6 by \displaystyle 3

Possible Answers:

\displaystyle 12+6\div4

\displaystyle 12\times(6\div4)

\displaystyle 12-6\div4

\displaystyle 12\times6\times4

\displaystyle 12\times6\div4

Correct answer:

\displaystyle 12\times6\div4

Explanation:

When you are asked to find the product that means we are going to multiply. Because we are multiplying and dividing in this question, we do not need to use parentheses because with multiplication and division you work the problem out from left to right. So first we have the multiplication problem, then we divide. 

Remember, order of operations is PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction.  

Example Question #786 : Concepts

Select the equation that reflects the phrase below.

Divide \displaystyle 12 by the quotient of \displaystyle 18 divided by \displaystyle 6

Possible Answers:

\displaystyle 12\div(18\times6)

\displaystyle 12\div18\div6

\displaystyle 12\div(18+6)

\displaystyle 12\div18\times6

\displaystyle 12\div(18\div6)

Correct answer:

\displaystyle 12\div(18\div6)

Explanation:

Quotient means the answer to a division problem. Because we want to divide \displaystyle 12 by the answer of \displaystyle 18\div3 we need to put that in parentheses so that it's done first. 

Remember, order of operations is PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction.  

Example Question #787 : Concepts

Select the equation that reflects the phrase below.

Add \displaystyle 15 and \displaystyle 7 and then multiply \displaystyle 3 by the sum

Possible Answers:

\displaystyle (15-7)\times3

\displaystyle 15+7\times3

\displaystyle (15+7)\div3

\displaystyle (15+7)\times3

\displaystyle 15-7\times3

Correct answer:

\displaystyle (15+7)\times3

Explanation:

Because we are multiplying by the sum, which is the answer to an addition problem, we first need to add so we need to put the addition problem in parentheses, then we can do the multiplication. 

Remember, order of operations is PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction. 

Example Question #788 : Concepts

Select the equation that reflects the phrase below.

\displaystyle 28 divided by the difference between \displaystyle 14 and \displaystyle 7

Possible Answers:

\displaystyle 28\div(14+7)

\displaystyle 28\div14-7

\displaystyle 28\div(14-7)

\displaystyle 28\div14+7

\displaystyle 28\div(14\times7)

Correct answer:

\displaystyle 28\div(14-7)

Explanation:

Because we are dividing by the difference, or answer, from the subtraction problem, we first need to subtract. In order for the subtraction problem to go first, we need to put that in parentheses. 

Remember, order of operations is PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction.  

Example Question #789 : Concepts

Select the equation that reflects the phrase below.

Find \displaystyle 34 more than \displaystyle 43 and then find \displaystyle 20 less than the sum. 

Possible Answers:

\displaystyle 43+34-20

\displaystyle 43\times34+20

\displaystyle 43-34-20

\displaystyle 43\times34-20

\displaystyle 43+34+20

Correct answer:

\displaystyle 43+34-20

Explanation:

The phrase "more than" means to add. Because we are adding and subtracting in this question, we do not need to use parentheses because with addition and subtraction you work the problem out from left to right. So first we have the addition problem, then we subtract. 

Remember, order of operations is PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction.  

Example Question #790 : Concepts

Select the equation that reflects the phrase below.

Find \displaystyle 21 less than the product of \displaystyle 6 and \displaystyle 7

Possible Answers:

\displaystyle 6+7-21

\displaystyle 6\times7+21

\displaystyle 6\times7-21

\displaystyle 6\times7\times21

\displaystyle 6\times7\div21

Correct answer:

\displaystyle 6\times7-21

Explanation:

The phrase "less than the product" means that we are going to subtract \displaystyle 21 from the answer of our multiplication problem. Because of our order of operations, multiplication will come beore subtraction so we do not need to use parentheses.

Remember, order of operations is PEMDAS= parentheses, exponents, multiplication/division, addition/subtraction. 

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