
Evaluating Expressions with Substitution

Interactive Video
•
Mathematics, English
•
6th - 8th Grade
•
Hard

Mia Campbell
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in evaluating an expression when x equals a specific value?
Add the value to x
Multiply the value by x
Subtract the value from x
Substitute the value for x
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of the expression x + 2 when x is substituted with 6?
10
8
12
6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you evaluate the expression 2x when x equals 6?
Add 2 to 6
Multiply 2 by 6
Subtract 2 from 6
Divide 6 by 2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of 2x when x is 6?
12
8
14
10
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are parentheses important when evaluating x^2 if x is negative?
They are not important
They simplify the expression
They help in addition
They ensure the correct base is used
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of x^2 when x is substituted with 6?
42
36
30
48
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many factors of 2 are there in the expression 2^x when x is 6?
5
4
6
7
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of 2^x when x is 6?
48
32
72
64
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a faster way to calculate 2^6?
Subtract 2 from 64
Add 2 six times
Recognize 2^3 as 8 and multiply 8 by 8
Multiply 2 by 6
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