SSAT Middle Level Math : How to multiply variables

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

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Example Questions

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Example Question #81 :Algebra

Suppose you know the values of all variables in the expression

and you want to evaluate the expression.

在顺序执行操作吗?

Possible Answers:

Multiplying, subtracting, adding

Multiplying, adding, subtracting

Adding, multiplying, subtracting

Subtracting, multiplying, adding

Adding, subtracting, multiplying

有限公司rrect answer:

Multiplying, adding, subtracting

Explanation:

By the order of operations, in the absence of grouping symbols, multiplication takes precedence over addition and subtraction. Addition and subtraction are then carried out with equal priority, but from left to right, so the addition is performed second and the subtraction last.

Example Question #12 :Operations

Multiply in modulo 8:

Possible Answers:

None of the other choices give the correct answer.

有限公司rrect answer:

Explanation:

In modulo 8 arithmetic, a number is congruent to the remainder of the divison of that number by 8. Since

and

then

.

The correct response is 4.

Example Question #13 :Operations

Which of the following phrases can be written as the algebraic expression?

Possible Answers:

九乘以the difference of fifty-five and a number

The correct answer is not given among the other responses.

The product of nine and a number subtracted from fifty-five

九乘以the difference of a number and fifty-five

Fifty-five subtracted from the product of nine and a number

有限公司rrect answer:

Fifty-five subtracted from the product of nine and a number

Explanation:

is fifty-five subtracted from.

is the product of nine and a number.

Subsequently,is "fifty-five subtracted from the product of nine and a number".

Example Question #14 :Operations

Solve the following expression,

.

Possible Answers:

The expression is already solved.

有限公司rrect answer:

Explanation:

When multiplying like variables, the constants are multiplied together.

For the exponents, when you multply variable exponents you have to add the exponents together.

andso that gives you an answer of.

Example Question #15 :Operations

Solve:

Possible Answers:

有限公司rrect answer:

Explanation:

When multiplying variables with exponents, add the exponents.

The correct answer is

Example Question #16 :Operations

Solve:

Possible Answers:

有限公司rrect answer:

Explanation:

When multiplying variables with exponents the exponents are added.

The correct answer is

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