Evaluating Variable Expressions


Provides two basic examples of evaluating a variable expression.

Grades 6 through 7 Material from CK-12

Preview Assign

Why Use This Content?

Read Receipt

See when students have begun their work. Or not.


Standards

HSA.SSE.A.1.A

HSA.SSE.A.1.B

7.EE.A.2

Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related.

7.EE.B.3

Solve multi?step real? life and mathematical problems posed with positive and negative rational numbers in any form (whole numbers, fractions, and decimals), using tools strategically. Apply properties of operations to calculate with numbers in any form; convert between forms as appropriate; and assess the reasonableness of answers using mental computation and estimation strategies.

6.EE.A.2

Write, read, and evaluate expressions in which letters stand for numbers.

6.EE.A.2.A

Write, read, and evaluate expressions in which letters stand for numbers.

6.EE.A.2.B

6.EE.A.2.C

6.EE.A.4

Identify when two expressions are equivalent (i.e., when the two expressions name the same number regardless of which value is substituted into them).

6.EE.B.6

Use variables to represent numbers and write expressions when solving a real? world or mathematical problem; understand that a variable can represent an unknown number, or, depending on the purpose at hand, any number in a specified set.