Making 10 and 20 Using Addition

Master the math of making 10 and 20 with two addends in this helpful addition worksheet! In the first section, students will need to write the missing addend in each addition number sentence so that the equation is true and adds up to 10. In the second section, learners will need to find the missing addend that will make 20 in each number sentence. 

This first-grade worksheet is a great activity for helping students develop addition fluency with benchmark numbers. The ability to quickly and accurately recall numbers that add up to make tens can help students learn addition with larger numbers and regrouping. 

Put your make-10 skills to use with these worksheets: Make 10 to Add: Matching #1, Make Ten to Add #1, and Make Ten to Add With Number Bonds: Part 1.