15 questions
1st - 3rd Grade
Mathematics
Adding Multiples of 10 is a mathematics worksheet for students in Grades 1–3 who are developing fluency with adding 10, 20, 30, or 40 to a whole number. The 15 multiple-choice questions include examples such as 13 + 10, 77 + 20, 37 + 40, and 451 + 10, helping learners notice how adding tens changes the tens or hundreds place while the ones digit remains unchanged. Students select the correct sum from four options, giving teachers a quick way to check computational accuracy and place-value understanding. The range of two- and three-digit numbers provides practice with adding multiples of 10 across different number sizes, including sums such as 100 + 20. This free printable worksheet includes a complete answer key and can support independent practice, review, or a short formative assessment.
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WorksheetsAnswer Key23
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32
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101
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This worksheet gives students 15 multiple-choice problems in which they add 10, 20, 30, or 40 to numbers ranging from two to three digits. Selecting answers for examples such as 45 + 20, 100 + 20, and 181 + 10 helps students practise increasing the tens or hundreds place while keeping the ones digit consistent.
First model one item, such as 37 + 40, by counting forward four tens or identifying the change in the tens place. Then have students solve the remaining multiple-choice questions and explain why the correct option fits, using the distractors to discuss errors such as adding only 4 instead of 40.
Students may add the digit in the multiple of 10 instead of its place value, treating 30 as 3 or 40 as 4. They may also change the ones digit unnecessarily or choose a distractor that reflects a one-digit addition error, so check their reasoning on items such as 24 + 10, 56 + 30, and 14 + 40.
Wayground provides this worksheet as a printable PDF and as a digital quiz, and it includes a complete answer key for the 15 multiple-choice questions. For printable submissions, you can scan student work with the Wayground for Teachers app to grade responses efficiently.
Use the worksheet’s Advanced Settings to adjust font spacing or choose a larger font size so the four answer choices are easier to scan. You can also apply a dyslexia-friendly font or translate the multiple-choice worksheet into another language when those options support access to the math tasks.
Wayground offers a broad collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.