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Add a 2-digit number and three 1-digit numbers - missing addend

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Free printable add a 2-digit number and three 1-digit numbers with missing addend worksheets for 2nd grade. Students solve for an unknown single-digit value within a four-addend equation, requiring careful addition of the three known numbers before finding the missing one. These worksheets represent a high level of 2nd grade addition challenge. Part of our addition worksheets collection.

What You'll Learn

  • Find the missing addend among four mixed-digit numbers
  • Use the known sum and addends to solve for the unknown
  • Practice flexible reasoning in multi-addend equations

FAQ

What multi-step process do students use to solve these missing addend problems?

Add the 2-digit number and the two known single-digit numbers to find their subtotal, then subtract that from the given sum to identify the missing single-digit addend.

What prerequisite skills are needed before students attempt this problem type?

Students should be confident with four-addend addition, missing addend reasoning, and basic regrouping before tackling this combined challenge.

How can teachers use these problems to assess algebraic thinking in 2nd grade?

Students who can consistently find the missing value by adding known parts and subtracting from the total are demonstrating the algebraic concept of solving for an unknown.

Grade
2nd Grade
Ages
Ages 7-8
Subject
Math
Format
Printable PDF

Ratings & Reviews

3

David L.

2nd Grade Teacher · Verified download

May 2026

Looking forward to this! All the other ClassWeekly worksheets are excellent so I know this will be too.

Helpful · 8

Jamie T.

1st Grade Teacher · Verified download

Apr 2026

Thanks for creating this! I'll be using it the moment it's available.

Helpful · 4

Emily W.

Homeschool parent · Verified download

May 2026

Excited for this one! I've been hunting for a good printable on this topic for weeks.

Helpful · 9

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