myTestBook.com Math Reading Science Practice Test for Grade 1, 2, 3, 4 & 5    
  you are taking the following test:

 
Grade: 7,    Subject: Math,    Topic: Variables and Algebraic Expressions
Question 1:
Find the expression that makes the solution table true.

2y2 + 5 + 10

+ 10 + 12
 
Question 2:
Write as an algebraic expression.

The sum of y and 10 is 3 more than n.

(y + 10) = n + 3(y + 10) − 3 = n

(y + 3) = n + 10(y + 10) + 3 = n
 
Question 3:
Write an algebraic expression for the following statement.
[Hint: Let y be the first number.]

The sum of three consecutive whole numbers.

y + 2y + 3y3y +1

y + (y + 1) + (y + 2)y + y + y
 
Question 4:
The statement "one-fourth of a number y, decreased by thirty-six" is represented by which of these expressions?

36 −4y− 36

− 3636 −
 
Question 5:
Evaluate the following algebraic expression for b = 4.

3(2b − 2) + (−b + 1)

3315

2112
 
Question 6:
What value of x will make the following equation true?

+ 8 = 18

5025

3260
 
Question 7:
Derek made a total of $130 by selling 5 magazines and 6 coupon books. He sold each coupon book for $12.50. Which equation can you use to find the cost, c, of each magazine?

5 + c + $12.50 × 6 = 1306c + $12.50 × 5 = 130

5c + $12.50 × 6 = 130c + $12.50 × 6 = 130 − 5c
 
Question 8:
Write as an algebraic expression.

Number of hours in d weeks.

168 + d

168d
 
Question 9:
The sum of a number y and 3, multiplied by 5 is 30. Find that number.

35

69
 
Question 10:
Which equation best represents the data shown in the table?

y = x2 + 5y = −x2 + 3

y = −2x2 − 5y = −x2 + 5
 
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