HSPT Math : HSPT Mathematics

Study concepts, example questions & explanations for HSPT Math

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Example Questions

Example Question #1071 : Hspt Mathematics

Subtract:

Possible Answers:

Correct answer:

Explanation:

Subtract the numerators and leave the denominators the same:

Answer: 

Example Question #1072 : Hspt Mathematics

Possible Answers:

 

Correct answer:

Explanation:

Subtract the numerators and keep the denominator as is:

Answer: 

Example Question #1073 : Hspt Mathematics

Evaluate: 

Possible Answers:

Correct answer:

Explanation:

Rewrite as fractions with a common denominator:

Now, in the first number, "borrow" eight eighths from the units column:

Subtract fractions by subtracting denominators, then subtract integers.

Example Question #1074 : Hspt Mathematics

Possible Answers:

Correct answer:

Explanation:

I think the easiest way to do this problem is to make a common denominator.  4 is the smallest common denominator.  

 is equivalent to .  

When you add  and  you get .  

reduces to and is equivalent to .

Example Question #224 : Grade 7

Evaluate:

Possible Answers:

Correct answer:

Explanation:

The sum of two numbers of unlike sign is the difference of their absolute values, with the sign of the "dominant" number (the positive number here) affixed:

Subtract vertically by aligning the decimal points, making sure you append the 3.2 with a placeholder zero:

This is the correct choice.

Example Question #1075 : Hspt Mathematics

Evaluate:

Possible Answers:

Correct answer:

Explanation:

Rewrite these numbers as improper fractions.

Now evaluate:

, so

Example Question #1076 : Hspt Mathematics

Add:

Possible Answers:

Correct answer:

Explanation:

Rewrite using the lowest comon denominator. Since :

Example Question #483 : Arithmetic

Possible Answers:

Correct answer:

Explanation:

When adding fractions, both denominators must be the same. A quick and easy way to do this is to multiply the numerator and the denominator of each fraction by the other fraction's denominator:

  and 

The  is multiplied by 6 on both ends because the denominator of  is 6. Likewise,  is multiplied by 3 on both ends because the denominator of  is 3. The problem should now look like this:

Remember to reduce. 15 and 18 are both divisible by 3.

 

Your answer is .

Example Question #483 : Concepts

Add the following fractions and simplify, if possible.

Possible Answers:

 

Correct answer:

 

Explanation:

In order to add fractions with different denominators, first find a common denominator of the fractions by finding the least common multiple. The least common multiple of these denominators is:


 and .

Because  already has the required denominator, nothing needs to be done to  .

Since the  in  needs to be multiplied by  in order to get  as the deonominator, multiply the numberator of    by .

The "new" addition problem is now: .

The answer to this question is therefore  .

Because  and  do not have a common factor, the answer cannot be simplified.

Example Question #5 : How To Add Fractions

Possible Answers:

Correct answer:

Explanation:

To add two fractions, first find the common denominator. We can convert  to , which reduces to .

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