1st Grade Addition within 20 Change Unknown Word Problems
by Fishyrobb © 2026
Price: $3.5 USD
Subjects: additionAndSubtraction
Grades: 1
Description
This deck is a set of "change unknown" word problems involving addition and subtraction within 20. The starting and ending quantities are given. Students have to determine the amount that was added or taken away. This is often a more difficult skill for young children because it's not obvious whether they should add or subtract. They really need to think about the problem Each card has one problem. There is a number line and tens frames where can show their work using the writing tool. They enter their final answer into a text box. The text is simple enough for most first-graders to read independently, but they can also listen to the problem with the read-aloud audio. Answers are self-checking.
Acknowledgements
Font and clip art by Bunny On A Cloud