Topic Test Answers

Celia simplified the expression . She checked her work by letting in both expressions. Her work for the original expression is shown below.Celia knows that the simplified expression should also equal 28 when . Which shows Celia’s simpllifed expression?

What is the value of the expression “eight more than three times the difference of four and a number” when n = 3?

Which expression is equivalent to 6(x – 4)?

Which expression correctly represents “twice the sum of four and a number”?

Grace was given the description “three less than the quotient of a number squared and nine, increased by eight” and was asked to evaluate it when n = 6. Her work is shown below.Step 1: Step 2: Step 3: Step 4: Step 5: 7In which step did she make an error?

Which algebraic expression represents “the sum of a number and 9”?

Which algebraic expression represents “the difference of 54 and a number”?

What is another word for magnitude?

Vance used the associative property to find the equivalent expression of . His work is shown below. Did Vance apply the associative property correctly? Why or why not?

Jillian wanted to determine the difference of 7 and a number, n. She wrote in a table several possible expressions she could use to represent this. Which is the correct expression number?Expression NumberExpression1234 Expression number: [BLANK]

Henry divided his socks into five equal groups. Let s represent the total number of socks. Which expression and solution represent the number of socks in each group if ?

What is the simplified expression for the expression below? 4(3x – 2) + 6x(2 – 1)

Which expressions are equivalent to ? Check all that apply.

Which description can be written as the expression ?

The table shows the number of degrees the temperature increased or decreased over four days.TemperatureDayTemperature ChangeTuesdayWednesdayThursdayFridayOn which day did the temperature change have the greatest magnitude?

Which algebraic expression means “four less than three times a number”?

Which algebraic expression represents “the quotient of 7 and a number”?

A math class is having a discussion on how to determine if the expressions and are equivalent. The class has suggested four different methods.Which describes the correct method?

Kona’s mother realized that her age is the difference of Kona’s age squared and four. If k represents Kona’s age, which expression represents Kona’s mother’s age?

Dona found that she had 7 almonds left over after filling a number of bags with 25 almonds each. She let b represent the number of bags and wrote an expression to represent the total number of almonds. She found that and then substituted to find the total number of almonds.Which statements should be part of Dona’s solution? Check all that apply.