2-Digit Addition Worksheets | Decomposing Tens and Ones | Grades 2–3

Help students understand 2-digit addition with these decomposition worksheets. This resource teaches children how to break numbers into tens and ones, add each part separately, and combine the results to find the final answer.

With 100 printable worksheets and 15 exercises on each page, students get plenty of structured practice using this addition strategy. All answers are under 200.

What’s Included

• 100 printable addition worksheets

• 15 addition problems per page

• 1,500 exercises in total

• 2-digit plus 2-digit addition

• Decomposition strategy using tens and ones

• Step-by-step addition practice

• All answers under 200

• Clear, easy-to-follow worksheet layout

• Printable PDF file

• No answer key or answer sheets included

Skills Students Will Practice

• 2-digit addition

• Breaking numbers into tens and ones

• Place value understanding

• Addition using decomposition

• Mental math strategies

• Calculation accuracy

• Addition fluency

• Number sense

Perfect For

• Grades 2–3

• Classroom math lessons

• Morning work

• Math centers

• Homework

• Independent practice

• Homeschooling

• Tutoring

• Math review

• Extra practice at home

These worksheets help students develop a better understanding of place value and learn a useful strategy for solving 2-digit addition problems. They are easy to print and use for regular classroom or home practice.