Addition to 20

Addition to 20
Addition to 20
Addition to 20
Addition to 20
Addition to 20
Addition to 20
Addition to 20
Addition to 20
Resource Type
Common Core Standards
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File Type

Compressed Zip File

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37 MB|194 pages
Also included in:
  1. Comprehensive 1st Grade Math Practice and Assessments resource. Includes 9 zip files: Count to 120, Add to 20, Subtract from 20, Place Value, Shapes, Fractions, Graphing, Telling Time, and Measurement. Over 800 pages of worksheets, and assessments. All Common Core aligned, with answer keys. You can
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Product Description

Adding to 20 is an important 1st Grade math standard that includes learning addition properties, finding sums and missing addends in all positions, adding three numbers, and relating addition to subtraction to name a few.

This resource was created to provide year-round practice for addition within 20, addition strategies, and word problem solving skills.

It consists of several types of worksheets and assessments that start at the end of Kindergarten level, and progressively go towards mastery of the 1st Grade Common Core Standards for addition within 20.

This resource will take you from day one to day 180! You’ll find plenty of practice for teaching and re-teaching, pre and post-assessments, all with answer-keys! Ideal for differentiating instruction.

This resource is organized in 3 files. The first one has sheets for addition practice. The second one has sheets for word problem solving practice, and the third one has assessments for each of the skills.

✔ Get it in a BUNDLE right here.


File #1 – Add to 20 (51 pages + answer keys)

• Add to 10 with dominoes

• Add to 10 with objects

• Add Facts to 10 – Sum Unknown

• Add Dominoes – Change Unknown

• Add Dominoes – Start Unknown

• Count on Number Lines to 10

• Count on Number Lines to 20

• Making 10

• Use Addition Strategies

• Fact Families

• Commutative Property

• Associative Property

• Equations with Symbols

• True or False Equations

File #2 – Word Problems (30 pages + answer keys)

• Sum Unknown to 10

• Sum Unknown to 20

• Change Unknown to 10

• Change Unknown to 20

• Start Unknown to 10

• Start Unknown to 20

• Mixed Practice

• Add three numbers

File #3 – Assessments (14 assessments + answer keys)

• Add to 10

• Add to 10 with Unknown in all positions

• Add to 20

• Add to 20 with Unknown in all positions

• Add 3 Numbers

• Fact Families

• Cumulative Test

More from the Practice Makes Perfect Series

BUNDLE - All Practice Makes Perfect Files!

Counting to 120

Place Value

Subtraction from 20


First Grade Fractions

First Grade Graphing

First Grade Telling Time

First Grade Measurement


Make sure to check out my other 1st Grade Resources

Math Homework

Word Work

Language Arts Homework

Parts of Speech


Math Homework in Spanish

Math Homework in English and Spanish

Kindergarten Math Homework

Second Grade Math Homework


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Total Pages
194 pages
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