Adding and Subtracting Within 20 Worksheet – 1st Grade Addition

Build strong addition skills with the Adding and Subtracting Within 20 Worksheet. This first grade math printable keeps the focus on one skill so students can practice it with confidence.

Learning objective: Students will build accuracy and confidence with addition through short, focused practice that reinforces what was taught in class.

Why it works: Short, focused practice is one of the best ways to help first grade students remember a new skill. Clear directions mean students can get started quickly, and the simple format makes it easy for you to spot who needs more help.

What's included:

• 1 printable worksheet page

• Clear, student-friendly directions

• Answer key (1 page)

• Cover page

How it's organized: The page opens with these directions: "Solve each problem. Use the number line below to help you add and subtract." Students then complete the practice items in order and check their work before turning it in.

Grade level: Designed for first grade students. It also works well for kindergarten and second grade students who need extra practice or a fresh review.

How to use it: Use it for whole-group practice, small-group instruction, independent work, centers, morning work, homework, or an emergency sub plan.

Answer key: An answer key is included, so you can check work quickly or let students self-correct.

Teaching tips and variations:

• Keep a few copies in your early finisher bin for independent review.

• Project the page and solve one or two items as a class before students work on their own.

• Send it home as homework so families can see what their child is learning in math.

Skills covered: Addition, Subtraction, Math

Standards: Supports Common Core 1.OA.C.6, 1.OA.A.1.

File type: PDF, ready to print.

Number of pages: 3 (1 worksheet page, 1 answer key page, 1 cover page).

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