Addition Word Problems Within 20

About this worksheet

A free printable addition word problems within 20 worksheet with an answer key. Read each story, write the number sentence and solve it. First graders can do it on their own once they know the strategy at the top of the page. Underline the question and circle the numbers before solving.

On this sheet

There are 12 apples in one basket and 1 apples in another. How many apples are there in all? Nora walked 9 steps to the park and 5 steps back home. How many steps did Nora walk in total? A bus has 9 people on it. At the next stop, 2 more people get on ___. How many people are on the bus now? Maya scored 5 points in the first game and 1 points in the second game.

Tips for using it

• Have your child say each fact out loud while writing the answer.
• Use small objects like buttons or cereal to check tricky problems.
• Draw a quick picture of each story before writing the number sentence.
• Draw a quick picture or a bar model when the story has more than one step.

Printing tips

Download the PDF and print at 100% (or “fit to page” on A4). Page 1 is the worksheet and page 2 is the answer key with the answers in red; print just page 1 if you want to keep the answers for checking. The PNG shows page 1 only. Free for personal, family and classroom use.