Evaluating Algebraic Expressions in Math 6

The video tutorial explains how to evaluate algebraic expressions by substituting variables with given values. It covers the evaluation of expressions involving whole numbers, decimals, and fractions, emphasizing the importance of following the order of operations. The tutorial provides step-by-step examples for each type of expression, demonstrating how to handle different mathematical operations, including multiplication, division, and the use of exponents.

What is the term used in math when we want to find the value of an expression?

• Calculate

• Evaluate

• Solve

• Estimate

Tags

CCSS.6.EE.A.2C

What is a variable in an algebraic expression?

• An operation

• A constant value

• A symbol representing an unknown number

• A known number

Tags

CCSS.6.EE.A.2B

In the expression 4y - 15, if y = 9, what is the first step to evaluate it?

• Subtract 15 from 4

• Multiply 4 by 9

• Add 4 and 9

• Divide 4 by 9

Tags

CCSS.6.EE.A.2C

What is the result of evaluating 4y - 15 when y = 9?

• 9

• 15

• 36

• 21

Tags

CCSS.6.EE.A.2C

In the expression 12a + 3.4, if a = 10, what operation should be performed first?

• Division

• Multiplication

• Subtraction

• Addition

Tags

CCSS.6.EE.A.2C

What is the final result of evaluating 12a + 3.4 when a = 10?

• 123.4

• 33.4

• 30

• 120

Tags

CCSS.6.EE.A.2C

In the expression 27 ÷ m², if m = 1/3, what is the first step to evaluate it?

• Divide 27 by 1/3

• Square 1/3

• Multiply 27 by 1/3

• Add 27 and 1/3

Tags

CCSS.6.EE.A.2C

What is the result of squaring 1/3?

• 1/27

• 1/6

• 1/9

• 1/3

Tags

CCSS.6.EE.A.1

How do you handle division of fractions in the expression 27 ÷ 1/9?

• Subtract the fractions

• Add the fractions

• Multiply by the reciprocal

• Divide directly

What is the final result of evaluating 27 ÷ 1/9?

• 3

• 9

• 27

• 243

Tags

CCSS.5.NF.B.7C

CCSS.5.NF.B.7B