K-5 friendly lesson
One small step at a time.Read the idea, try the activity, and celebrate each win as you go.

Add a multiple of ten and a two-digit number

Master the skills and concepts for: Add a multiple of ten and a two-digit number.

Do this: Read the concept below, then try the quiz or activity.

Lesson 149 of 180

Concept

What you'll learn

This lesson covers Add a multiple of ten and a two-digit number. Understanding this topic builds your mathematical foundation and connects to other ideas in the course.

Key ideas

Work through the definitions, examples, and procedures. Pay attention to when and how to apply the main concept. Practice with the exercise below to reinforce your understanding.

Why it matters

These skills appear in later lessons and in real-world applications. Take time to check your work and use the quiz to confirm you've got the main idea.

Try it

Practice: Add a multiple of ten and a two-digit number.

1. Work through one example from the concept section. 2. Try a similar problem with different numbers or a slight variation. 3. Explain in one sentence how you knew what to do.

📈 Coordinate Grapher

Explore the graph and connect it to the lesson idea.

y = y = 1x
-10-9-8-7-6-5-4-3-2-112345678910-10-9-8-7-6-5-4-3-2-112345678910

Concept Check

What is the main focus of "Add a multiple of ten and a two-digit number"?

Practice tip
Work one example fully before moving on. Check each step against the concept section.

Key terms