Solving Addition and Subtraction Equations
Grade 2nd Grade · Math · 45 min
What's Included
Learning Objective
I can solve simple addition and subtraction equations.
Reading Passage
Solving Simple Equations
Let’s learn about equations! An equation is like a number sentence that shows two things are equal. It uses an equal sign (=).
For example, 2 + 3 = 5 is an equation. The plus sign (+) means we add. The equal sign (=) means that what’s on one side is the same as what’s on the other side.
We can also have subtraction equations. The minus sign (-) means we take away. For example, 5 - 2 = 3 is an equation.
Sometimes, there’s a missing number in the equation. We can use a box to show the missing number. For example: 2 + ☐ = 5. What number goes in the box to make the equation true? If you said 3, you’re right! Because 2 + 3 = 5.
Let's try another one: 7 - ☐ = 4. What number goes in the box? If you said 3, you're right! Because 7 - 3 = 4. Solving equations is like being a number detective!
Guided Notes
3 key concepts
- 1
An equation is a number sentence that shows that two things are equal, and it uses an equal sign.
- 2
The plus sign means we add, and the minus sign means we take away.
- 3
When solving equations with a missing number, we can use a box to represent the missing number and find the number that makes the equation true.
Practice Questions
7 questions · Multiple choice & Short answer
Exit Ticket
Quick comprehension check
“Solve for the missing number: 4 + ☐ = 9”
Complete Lesson Package
Get all 3 ready-to-use resources: