Simple Equations - Addition and Subtraction

Mathematics Grade 2 Difficulty 2/5

Beginning of the lesson

🧮 Simple Equations with Addition and Subtraction

Let's learn how to find mystery numbers! 🔍✨

📝 What is an Equation?

An equation is like a math sentence!

✅ It has an equals sign (=)
✅ It shows two sides that are the same
✅ Sometimes it has a mystery number we need to find!

Example: 3 + 4 = 7 is an equation!
Both sides equal 7! 🎉

Interactive visualization — available in the full lesson

❓ What is an Unknown?

An unknown is a mystery number we need to find!

We can show it different ways:

☐

Empty Box

Question Mark

Letter x

Our job: Find what number goes in the box! 🎯

Interactive visualization — available in the full lesson

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In the full lesson

The complete explanation
Worked examples
Common mistakes and how to avoid them
Test questions: 16
AI tutor that answers questions about the topic
Progress tracking for students, parents and teachers