Example Questions

Example Question #11 : Arithmetic

Evaluate (√4 + √4)2

8

40

6

16

4

16

Explanation:

The square root of 4 is 2.  2 + 2 = 4.  Four squared is 16.

Example Question #12 : Arithmetic

(11)(4 – 3)– (2+ 6) = ?

1

–53

24

2

111

1

Explanation:

The correct order of operations is parenthesis, exponents, multiplication and division, then addition and subraction.

(11) * (4 – 3)– (2+ 6)

(11) * (1)– (4 + 6)

(11) * (1) – (10)

(11) – (10) = 1

Example Question #13 : Arithmetic

If (x – 7)= 64, what is x?

–15

15

1

–1

15

Explanation:

Solving for x yields 15.

√64 = 8, so we want x – 7 = 8; add 7 to both sides of the equation, so that x = 15

Example Question #14 : Arithmetic

7 more than a number squared is 71. What is the number?

64

9

7

8

8

Explanation:

Subtracting the 7 yields 64, and the square root of 64 is equal to 8.

Example Question #15 : Arithmetic

Evaluate if .      Explanation: Example Question #16 : Arithmetic

Consider the function: What is the value of ?

–33

17

–17

It is impossible to square a negative number.

–49

–17

Explanation:    Example Question #11 : Arithmetic

Solve:       Explanation:

To solve the above expression we must follow PEMDAS.

So the parentheses are first. .

Then we need to divide 4 by 2 before subtracting because division comes before subtraction. Example Question #18 : Arithmetic       Explanation:

Order of operations: "PEMDAS”, or "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction".   Example Question #19 : Arithmetic

Evaluate when and . None of the other answer choices are correct.    Explanation:

We can evaluate when and by plugging in and substituting:   Example Question #20 : Arithmetic       When doing operations of subtraction and addition, there is no priority but we must work from left to right. The sum on the left is and we do the subtraction. The answer is . 