Lesson 22 Subtract From Teen Numbers

    • Let’s subtract from a teen number.

Warm-up Number Talk: Subtract from a Teen Number

Find the value of each expression mentally.

Activity 1 Subtraction Methods

Crayons, 16.

Elena has 16 crayons.
She gives 7 crayons to Diego.
How many crayons does she have left?
Show your thinking using drawings, numbers, or words.

Activity 2 Number Card Subtraction

  1. Choose a teen number card.

  2. Choose a number card to subtract.

  3. Find the difference.

  4. Write an equation.

  1. My equations:

  2. Pick your favorite equation.
    Show how you found the value of the difference using drawings, numbers, or words.

Practice Problem

Problem 1

Find the number that makes each equation true.
Show your thinking using drawings, numbers, or words.