Christmas Addition Worksheet
This Christmas Addition Worksheet has 1st graders find twelve missing addends within 20, then crack a number code to reveal a holiday message. An answer key is included for easy checking.
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About this resource
Description
The Christmas Addition Worksheet turns missing-number practice into a holiday puzzle for 1st grade. Students look at facts such as 7 + a box = 12 and figure out which number belongs in the box. Finding an unknown addend helps children see how addition and subtraction work together, which is a key 1st grade math skill.
This 1st grade addition worksheet has twelve facts within 20. After children find each missing number, they use a simple number code, where 1 stands for A and 2 stands for B, to change their answers into letters. The letters spell a secret holiday message, so kids can check their own work: if a word does not make sense, one of the answers needs another look.
What’s Included
- Twelve missing-addend addition facts within 20
- A number-to-letter code chart and a secret message puzzle
- An answer key with every missing number and the solved message
Why It Helps Kids
- It builds number sense by asking what must be added to reach a total.
- It links addition to subtraction, since 12 take away 7 also finds the answer.
- The secret message gives children a fun reason to double-check their math.
Ideas for Teachers and Parents
Use the Christmas Addition Worksheet as a December math center, a morning warm-up, or a festive homework page. Let children use counters, a number line, or their fingers to count on from the first number. When they finish, talk about the message and what it means to share with others during the holidays. You can also have students make up their own missing-number facts for a partner to solve, then trade papers and check each other’s answers with the code chart.
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