SSAT Middle Level Math : Numbers and Operations

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

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Example Questions

Example Question #1 : Ratio And Proportion

Which ratio is equivalent to  ?

Possible Answers:

Correct answer:

Explanation:

A ratio can be rewritten as a quotient; do this, and simplify it.

Rewrite as

 

or 

Example Question #1 : Numbers And Operations

A soccer team played 20 games, winning 5 of them.  The ratio of wins to losses is 

Possible Answers:

Correct answer:

Explanation:

The ratio of wins to losses requires knowing the number of wins and losses.  The question says that there are 5 wins.  That means there must have been

losses. 

The ratio of wins to losses is thus 5 to 15 or 1 to 3.

Example Question #1 : Ratio And Proportion

Rewrite this ratio in the simplest form: 

Possible Answers:

Correct answer:

Explanation:

Rewrite in fraction form for the sake of simplicity, then divide each number by :

The ratio, in simplest form, is 

Example Question #1 : How To Find A Ratio

Rewrite this ratio in the simplest form:

Possible Answers:

Correct answer:

Explanation:

A ratio involving fractions can be simplified by rewriting it as a complex fraction, and simplifying it by division:

Write as a product by taking the reciprocal of the divisor, cross-cancel, then multiply it out:

The ratio simplifies to 

Example Question #2 : How To Find A Ratio

Rewrite this ratio in the simplest form:

Possible Answers:

Correct answer:

Explanation:

A ratio involving fractions can be simplified by rewriting it as a complex fraction, and simplifying it by division:

Write as a product by taking the reciprocal of the divisor, cross-cancel, then multiply it out:

The ratio simplifies to 

Example Question #3 : How To Find A Ratio

Rewrite this ratio in the simplest form: 

Possible Answers:

Correct answer:

Explanation:

Rewrite in fraction form for the sake of simplicity, then divide each number by :

In simplest form, the ratio is 

 

Example Question #4 : How To Find A Ratio

Squares

Note: Figure NOT drawn to scale.

Refer to the above diagram. If one side of the smaller square is three-fifths the length of one side of the larger square, what is the ratio of the area of the gray region to that of the white region?

Possible Answers:

Correct answer:

Explanation:

Since the answer to this question does not depend on the actual lengths of the sides, we will assume for simplicity that the larger square has sidelength 5; if this is the case, the smaller square has sidelength 3. The areas of the large and small squares are, respectively,  and . 

The white region is the small square and has area 9. The grey region is the small square cut out of the large square and has area . Therefore, the ratio of the area of the gray region to that of the white region is 16 to 9.

Example Question #663 : Ssat Middle Level Quantitative (Math)

Squares

Note: Figure NOT drawn to scale.

Refer to the above diagram. If one side of the smaller square is three-fourths the length of one side of the larger square, what is the ratio of the area of the gray region to that of the white region?

Possible Answers:

Correct answer:

Explanation:

Since the answer to this question does not depend on the actual lengths of the sides, we will assume for simplicity that the larger square has sidelength ; if this is the case, the smaller square has sidelength . The areas of the large and small squares are, respectively,  and . 

The white region is the small square and has area . The grey region is the small square cut out of the large square and has area . Therefore, the ratio of the area of the gray region to that of the white region is  to .

Example Question #1 : Ratio And Proportion

Express the following ratio in simplest form: 

Possible Answers:

Correct answer:

Explanation:

Rewrite this in fraction form for the sake of simplicity, and divide both numbers by :

The ratio, simplified, is .

Example Question #2 : Numbers And Operations

Express this ratio in simplest form: 

Possible Answers:

Correct answer:

Explanation:

A ratio of fractions can best be solved by dividing the first number by the second. Rewrite the mixed fraction as an improper fraction, rewrite the problem as a multiplication by taking the reciprocal of the second fraction, and corss-cancel: 

The ratio, simplified, is .

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