ISEE Lower Level Quantitative : How to add

Study concepts, example questions & explanations for ISEE Lower Level Quantitative

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Example Questions

Example Question #11 : How To Add

Which of the following is the sum of two-thirds and five-sixths?

Possible Answers:

Correct answer:

Explanation:

Example Question #12 : How To Add

Which of the following is the sum of one-tenth and one-sixth?

Possible Answers:

Correct answer:

Explanation:

Example Question #13 : How To Add

The time is 8:45 AM. What time will it be in two hours and thirty minutes?

Possible Answers:

Correct answer:

Explanation:

You can add two hours and thirty minutes to 8:45 AM as follows:

     

 

     

Since one hour is equal to 60 minutes, divide 75 minutes by 60; this is 1 hour 15 minutes, so

making the time 11:15 AM.

Example Question #14 : How To Add

Add in modulo 9:

Possible Answers:

The correct response is not given among the other responses.

Correct answer:

Explanation:

The sum of two or more numbers in modulo 9 arithmetic is the remainder of the sum when it is divided by 9. Since

and 

,

then 

The correct response is 9.

Example Question #15 : How To Add

Add in modulo 12:

Possible Answers:

Correct answer:

Explanation:

The sum of two or more numbers in modulo 12 arithmetic is the remainder of the sum when it is divided by 12. Since

and 

,

then 

The correct response is 9.

Example Question #16 : How To Add

Give the sum of 0.4, 0.44, and 0.444.

Possible Answers:

Correct answer:

Explanation:

Write the two numbers vertically with decimal points aligned, adding two zeroes to the 0.4 and one to the 0.44. Then add vertically:

   

   

    

Example Question #15 : How To Add

Which expression is equal to three times J plus four?

Possible Answers:

Correct answer:

Explanation:

Three times J is equal to 3J. Therefore, three times J plus four is equal to 3J + 4. 

Thus, the correct answer is: 

Example Question #16 : How To Add

Suzie had twice as many marbles as Sandy. Each child was given a bag of 60 marbles, and now Suzie has 110 marbles. How many marbles does Sandy have now?

Possible Answers:

Correct answer:

Explanation:

Suzie has 110 marbles; she had  marbles before being given the bag of 60. Sandy had half this, or  marbles; after being given her bag of 60, she now has  marbles.

Example Question #17 : How To Add

Add:

   

   

Possible Answers:

Correct answer:

Explanation:

First, add pounds and ounces separately.

   

   

   

Since 16 ounces make one pound, we divide 28 by 16:

28 ounces is equal to 1 pound 12 ounces, so 

Example Question #18 : How To Add

What number is equal to fifty-three thousand, four hundred and eleven?

Possible Answers:

Correct answer:

Explanation:

Fifty-three thousand equals , four hundred equals , and eleven equals

Therefore, fifty-three thousand, four hundred and eleven equals:

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