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K-5 Grade 1 Unit 3 Lesson 22

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Lesson 22

Warm-up Activity 1 Activity 2

Unit 3, Lesson 22

Subtract from Teen Numbers

Grade 1

Warm-up

Find the value of each expression mentally.

Activity 1

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

Choose a teen number card.
Choose a number card 0–9 to subtract.
Find the difference.
Write an equation.

My equations:

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