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In this 1.OA.8 First Grade Common Core Lesson, students find the unknown whole number in addition equations up to 20.
This activity challenges students to find the missing addends in the given equation. This activity is great in multiple situations- math centers, small groups, partners or a full class lesson.
First, choose a math strategy (cubes, number lines, fact families,etc) to solve for the missing number. When you have found the missing addend, find the number on the star card. Finally, continue your practice with the additional worksheets with a partner or by yourself.
If you are using this activity, your students are probably learning about finding the missing addend.
Use this Missing Number Addition Activity as an additional resource for your students.
You may introduce this activity by reviewing fact families or practicing math facts using Addition Flash Cards. Next, students try finding the missing addend first. After time to work, students explain how they found the missing addend.When you are choosing students, be sure to look for a variety of strategies! Then, students complete the activity independently or with a partner. Finally, students continue their practice of finding the missing addends with the given worksheets.
Be sure to check out more Addition Activities and the entire First Grade Common Core Workbook.
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