Grade 1 Addition: Missing addends

Generate a printable Grade 1 addition worksheet for this skill. Change the difficulty, layout or problem count below, then print the worksheet or its answer key.

What students practice: Finding the missing addend is determining the unknown in an addition equation.

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What to practice

GradeDifficulty

OperationSkill

Worksheet options

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Worksheet preview — matches what “Print worksheet” produces.Grade 1 · Addition · Missing addends · Standard

Grade 1 · Addition

Missing Addends

Name: Class: Date:

Set 1 · Grade 1 · Addition

Example problems by difficulty

Real samples from this generator. Every worksheet is a fresh random set, so yours will differ.

Easy

5 + ___ = 7
Answer: 2
7 + ___ = 10
Answer: 3

Standard

8 + ___ = 10
Answer: 2
___ + 9 = 15
Answer: 6

Challenge

12 + ___ = 19
Answer: 7
___ + 5 = 19
Answer: 14

Where this skill fits

Previous skill: Addition within 20
All grades: Addition worksheets, Grades 1–5

Related Common Core standards

1.OA.D.8 — Find the unknown whole number in an addition or subtraction equation.

The task matches what these standards describe at this grade. Common Core–informed practice; not a claim of official alignment.