Worksheetsadding to 20
Total questions: 10
Name
Class
Date
Answer Keyadding to 20
Total questions: 10
1.
c)
20
2.
a)
4
, d)16
3.
18, 18
4.
d)
17
5.
c)
18
6.
d)
20
7.
b)
19
8.
a)
13
9.
a)
20
10.
19, 19
adding to 20
10 questions
1st - 1st Grade
Mathematics
Adding to 20 is a Grade 1 mathematics worksheet that helps students solve addition equations with sums up to 20. Across 10 questions, students work through seven multiple-choice items, one multiple-select item, and two fill-in-the-blank equations. The problems include facts such as 10 + 10, 13 + 4, 17 + 2, and 7 + 12, giving students practice finding sums and identifying two addends that make 20. Use this worksheet for independent practice, a quick formative assessment, or review after introducing addition within 20. The different response types require students to select a correct sum, choose both numbers in a number pair, and write an answer, helping you see whether they can apply addition facts beyond a single response format. This free printable worksheet includes an answer key for efficient checking and feedback.
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FAQs
What does the “Adding to 20” worksheet cover?
This Grade 1 mathematics worksheet builds fluency with addition equations whose sums are 20 or less. Its 10 items use multiple-choice, multiple-select, and fill-in-the-blank formats, asking students to find sums such as 15 + 3 and 14 + 6 and identify both addends that make 20, such as 4 and 16.
How can I use this worksheet to teach addition within 20?
Introduce the worksheet by modeling how to combine two addends and identify the sum, using an example such as 10 + 10. Then discuss how a pair such as 4 and 16 makes 20 before students complete the multiple-choice and fill-in-the-blank equations independently. Review the multiple-select item together so students explain why both numbers, rather than only one option, must be chosen.
What mistakes should I watch for on this addition worksheet?
Students may confuse an addend with the sum, choosing a number such as 5 or 6 instead of the result of the equation. On the multiple-select question, some students may select 20—the target sum—instead of selecting both addends, 4 and 16. In the fill-in-the-blank items, check that students calculate the full equation rather than copying one of the numbers shown.
How do I assign and grade this adding-to-20 worksheet?
The worksheet is available as a printable PDF and as a digital quiz on Wayground, and it includes a complete answer key for all 10 addition items. For printable submissions, you can scan student work with the Wayground for Teachers app to help grade responses efficiently.
How can I differentiate this worksheet for students practicing addition within 20?
Use the worksheet’s Advanced Settings to adjust font spacing or font size so the addition equations and answer choices are easier to read. You can also select a dyslexia-friendly font or translate the worksheet into another language, while keeping the multiple-choice, multiple-select, and fill-in-the-blank practice intact.
Where can I find more free worksheets like this on Wayground?
Wayground offers a comprehensive collection of free printable worksheets and practice problems across all subjects, with downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.