Word problems with both addends unknown - up to 20
Free printable Grade 1 math worksheet for "Word problems with both addends unknown - up to 20" — practice addition and subtraction word problems up to 20. No-prep, print or assign online.
This worksheet provides Grade 1 students with word problems focused on addition where both addends are unknown, reinforcing their understanding of sums up to 20. Teachers can use these problems to encourage critical thinking and number sense by having students analyze and solve for missing parts in addition equations. Ideal for practicing problem-solving skills and enhancing comprehension of addition concepts within real-world contexts.
Learning objectives
- Solve addition word problems where both addends are unknown, with sums up to 20
- Apply reasoning skills to determine missing numbers in addition scenarios
- Develop fluency in decomposing numbers up to 20 through contextual problems
Answer Key
How to use this worksheet
- Click “Download Worksheet” to get the PDF — free with a KiwiBee account (up to 25 downloads a month).
- Print at home or in class for Grade 1; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
Frequently asked questions
Is the “Word problems with both addends unknown - up to 20” worksheet free?
Yes. “Word problems with both addends unknown - up to 20” is a free printable Math worksheet. Sign in with a free KiwiBee account to download the PDF — it includes up to 25 downloads a month.
What grade or age is this Math worksheet for?
It's designed for Grade 1 (ages 6–7), covering Addition and subtraction word problems up to 20.
Does it come with an answer key?
Yes — a matching answer key is included so you can grade it in seconds.
Make it your own in the Worksheet Studio
Combine this with other worksheets, duplicate it, or generate a fresh version for any grade and language — free, no sign-up.
Open the Worksheet Studio
