Algebra

Substitution

Using substitution to evaluate algebraic expressions.

Goal:

Learn how to replace variables with numerical values to evaluate expressions

3Lessons

6Micro-lessons

Not setDifficulty

Lesson 1

Recognize what should be replaced and what stays.

Start2 Micro-lessons

Micro lesson 1

Spot the variable

Micro lesson 2

Know what stays fixed

Lesson 2

Replace variables correctly and avoid common mistakes.

Start2 Micro-lessons

Micro lesson 1

Replace carefully

Micro lesson 2

Handle signs correctly

Lesson 3

Calculate the final value after substitution.

Start2 Micro-lessons

Micro lesson 1

Calculate step by step

Micro lesson 2

Check the result