Dragon Egg Hunt: Subtract by Thinking Addition worksheet preview

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Dragon Egg Hunt: Subtract by Thinking Addition

Grade 1 dragon egg practice: solve subtraction within 20 by finding the missing addend, with ten frames, fact matching, and short stories.

Grade 1MathInteractive · Printable

Aligned to1.OA.B.4

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What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
12 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 1
Subject: Math
Question types: Fill in the blank, Multiple choice, Matching, Circle the answer, Short answer

About this worksheet

What students practice

Students solve subtraction within 20 by finding the unknown addend in a related addition fact.
Students match subtraction facts to the addition facts that help solve them.

How to use

Model the first problem aloud: to find 13 − 6, ask what to add to 6 to make 13. Students can use counters or the ten frame for the first section.

Curriculum

Common Core standard covered

Treat subtraction as finding an unknown addend.

Preview

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Name Date

Dragon Egg Hunt: Subtract by Thinking Addition

Find the missing part to solve each subtraction.

Think addition

Find the missing part. Then use it to solve the subtraction.

1.

6 + = 13, so 13 − 6 =

2.

3 + = 11, so 11 − 3 =

3.

9 + = 15, so 15 − 9 =

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