Sorting Equations Worksheet
This sorting equations worksheet has 1st graders solve nine addition equations, sort them under the sums 6, 8, and 10, and fill in missing numbers. An answer key is included for easy checking.
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About this resource
Description
A number can be made in many different ways, and seeing those ways is a big step toward quick, flexible addition. This sorting equations worksheet helps first graders discover that 6, 8, and 10 each have many names. When a child sees that 10 can be 2 + 8, 4 + 6, or 7 + 3, the sum stops being a single fact to memorize and becomes a number they understand.
About This Worksheet
At the top, students read a box of nine addition equations. They solve each one and write it on a line under the sum it makes: 6, 8, or 10. Every column holds exactly three equations, so children can check their own work when all the lines are full. In the second part, students write the missing number to finish three equations, including one that uses zero. This sorting equations worksheet works well for math centers, morning work, homework, or a quick check after a lesson on number pairs.
What’s Included
- A sorting activity with nine addition equations and three sum columns
- Three missing-number equations within 10
- An answer key on the second page
- A printable PDF that is ready to copy
Why It Helps Kids Learn
First, sorting equations by their sum shows children that one number has many names, which is the heart of decomposing numbers. Second, writing each equation again gives extra practice with addition within 10 without feeling like a drill. Third, the missing-number equations ask students to think about parts and wholes in both directions, which gets them ready for subtraction.
Ideas for Teachers and Parents
Before the page, give children ten counters and ask them to split the pile into two groups in as many ways as they can. After they finish, have students pick one column and build each equation with blocks or fingers to prove it. You can also ask children to write one more name for 6, 8, and 10 under each column. This 1st grade addition worksheet also makes a handy fluency review later in the year.
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