SSAT Elementary Level Math : Operations

Study concepts, example questions & explanations for SSAT Elementary Level Math

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Example Questions

Example Question #6 : Understanding The Associative Property

Which is an example of the associative property?

Possible Answers:

\displaystyle 6+(3+2)=11 and \displaystyle (6+3) + 2 = 11

\displaystyle 6+3+2=11 and \displaystyle 6+6=11

\displaystyle 6+5=11 and \displaystyle 6=11-5

\displaystyle 6+3=9 and \displaystyle 3+6=9

Correct answer:

\displaystyle 6+(3+2)=11 and \displaystyle (6+3) + 2 = 11

Explanation:

The associative property says that, when you are only adding or only multiplying, the way you group the items in a series does not matter.  Given 6 + 3 + 2 = 11, whether you group (6 + 3) + 2 or 6 + (3 + 2), the outcome does not change as the order in which you sum the numbers does not matter.

Example Question #1 : How To Multiply

\dpi{100} 12\times 3=

Possible Answers:

\dpi{100} 36

\dpi{100} 16

\dpi{100} 15

\dpi{100} 9

Correct answer:

\dpi{100} 36

Explanation:

Write 12 down. Then write the 3 below the 2 in 12.

Multiply the bottom number with the top numbers, starting on the right:

\dpi{100} 3\times 2=6

\dpi{100} 3\times 1=3

The answer is 36.

Example Question #2 : How To Multiply

Fill in the blank to make a true statement:

 

\displaystyle 8 + 4\times6 = ______________

Possible Answers:

\displaystyle 72

\displaystyle 18

\displaystyle 80

\displaystyle 52

\displaystyle 32

Correct answer:

\displaystyle 32

Explanation:

By the order of operations, multiplication comes before addition.

\displaystyle 8 + 4\times6 = 8 + 24 = 32

Example Question #3 : How To Multiply

Find the product of 14 and 3.

Possible Answers:

\displaystyle 42

\displaystyle 36

\displaystyle 28

\displaystyle 45

\displaystyle 39

Correct answer:

\displaystyle 42

Explanation:

To find the product, we need to multiply.

\displaystyle 14\times3=42

Another way to solve is to add up three groups of 14.

\displaystyle 14+14+14=42

Example Question #4 : How To Multiply

Sally ate three sandwiches each day from Monday to Friday. How many sandwiches did she eat in all?

Possible Answers:

\displaystyle 20

\displaystyle 15

\displaystyle 12

\displaystyle 9

\displaystyle 16

Correct answer:

\displaystyle 15

Explanation:

Every day Sally eats 3 sandwiches, so we will multiply 3 by the number of days.

Monday, Tuesday, Wednesday, Thursday, Friday is five days.

\displaystyle 3*5=15

Another way to solve is to add the number of sandwiches each day for five days.

\displaystyle 3+3+3+3+3=15

Example Question #4 : How To Multiply

Find the missing number in the series.

\displaystyle 1,\ 4,\ 9,\ 16,\ ?,\ 36

Possible Answers:

\displaystyle 29

\displaystyle 30

\displaystyle 25

\displaystyle 35

\displaystyle 21

Correct answer:

\displaystyle 25

Explanation:

The series is increasing, and shows the sequence of of perfect squares. Each term is equal to a number times itself.

\displaystyle 1\times 1=1

\displaystyle 2\times 2=4

\displaystyle 3\times 3=9

\displaystyle 4\times 4=16

This missing number will be equal to five times five.

\displaystyle 5\times 5=25

\displaystyle 1,\ 4,\ 9,\ 16,\ 25,\ 36

Example Question #4 : How To Multiply

If Greg eats 4 apples a day, how many apples will he have eaten in one week (7 days)?

Possible Answers:

\displaystyle 16\ apples

\displaystyle 32\ apples

\displaystyle 11\ apples

\displaystyle 3\ apples

\displaystyle 28\ apples

Correct answer:

\displaystyle 28\ apples

Explanation:

You multiply the number of apples he eats a day by the number of days. So it is

\displaystyle 7\cdot 4=28 apples.

Example Question #5 : How To Multiply

\displaystyle 23\times17 =

Possible Answers:

\displaystyle 391

\displaystyle 381

\displaystyle 441

\displaystyle 321

\displaystyle 274

Correct answer:

\displaystyle 391

Explanation:

When you multiply the two values, you get 391.

Example Question #6 : How To Multiply

If Carol has to drive 60mph for 4 hours to reach her friend's house, how far is her friend's house?

Possible Answers:

\displaystyle 280\ miles

\displaystyle 64\ miles

\displaystyle 240\ miles

\displaystyle 320\ miles

\displaystyle 120\ miles

Correct answer:

\displaystyle 240\ miles

Explanation:

\displaystyle Distance=rate\times time

so

\displaystyle 60\ mph\times 4\ hours=240\ miles

Example Question #8 : How To Multiply

\displaystyle x = -0.5

place the following in order from greatest to least:

 

\displaystyle x, x^{2}, x^{3}, x^{4}

Possible Answers:

\displaystyle x^{2}, x^{4}, x^{3}, x

\displaystyle x, x^{2}, x^{3}, x^{4}

\displaystyle x^{2}, x^{4}, x, x^{3}

\displaystyle x, x^{2}, x^{4}, x^{3}

\displaystyle x^{4}, x^{2}, x, x^{3}

Correct answer:

\displaystyle x^{2}, x^{4}, x^{3}, x

Explanation:

\displaystyle x is negative, so \displaystyle x will be smaller than \displaystyle x^{2} and \displaystyle x^{4}.

\displaystyle x is a decimal, so it will have greater magnitude than \displaystyle x^{3} (which will make it smaller, since they are both negative).

\displaystyle x is a decimal so \displaystyle x^{2} will have greater magnitude than \displaystyle x^{4} (which will make it greater, since they are both positive).

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