teaching resource

Addition and Subtraction Within 20 – Worksheet

Teach Starter Publishing
PDF | 2 pages | Grades: K - 2

Use this worksheet with your students when exploring addition and subtraction within 20.

Addition and Subtraction Within 20 Worksheet

This worksheet is the perfect beginning activity when looking at number sentences with your students for the first time.

The worksheet includes ten addition sentences and ten subtraction. There is also a number line at the bottom of the page to assist students with counting on or back from the numbers in the questions.

The numbers and answers for the questions reach a maximum of twenty.

An answer page is included with your download to make marking fast and easy!

Tips for Differentiation + Scaffolding  

In addition to individual student work time, use this worksheet as a:

  • guided math activity
  • homework assignment
  • whole-class review (via smartboard)

Make this worksheet more of a challenge by tasking students to write their own number sentences for addition and subtraction on the back of the page.

Encourage students who need extra support to use the number line provided or provide students with manipulatives they can use to help determine the result of the number sentence.

🖨️ Easily Download & Print

This resource downloads as a black and white PDF.

Turn this teaching resource into a sustainable activity by printing on cardstock and slipping it into a dry-erase sleeve. Students can record their answers with a whiteboard marker, then erase and reuse them.

Additionally, project the worksheet onto a screen and work through it as a class by having students record their answers in their notebooks.

Get more handy worksheets here!

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