Evaluating Algebraic Expressions and Simplifications

Evaluating Algebraic Expressions and Simplifications

Assessment

Interactive Video

Mathematics

6th - 8th Grade

Hard

Created by

Sophia Harris

FREE Resource

The video tutorial explains how to evaluate algebraic expressions by substituting given values for variables and simplifying using the order of operations. It provides five examples, each demonstrating a different type of expression, including linear, fractional, and quadratic expressions, as well as expressions involving pi and square roots. The tutorial emphasizes careful simplification and the use of parentheses to ensure correct calculations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in evaluating an algebraic expression?

Simplify the expression

Substitute the given values for the variables

Multiply all terms

Add all terms

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of evaluating 2x - 5 when x equals -6?

-11

-17

-7

-13

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can the expression 2x - 5 be alternatively represented?

2x + 5

2x + (-5)

2x - (-5)

2x - 5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the simplified form of 4/(5t - 4) when t equals 4?

1/2

1/4

1/5

1/3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why can't we simplify the fours in the expression 4/(5t - 4) directly?

Because they are separated by addition or subtraction

Because they are part of a fraction

Because they are not like terms

Because they are in different expressions

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of evaluating (2/3)πr²h when r equals 3 and h equals 7?

39π

36π

42π

45π

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the simplified form of 3² in the expression (2/3)πr²h?

6

9

12

3

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