Adding and Subtracting to 1000 Activity
Children solve three-digit addition and subtraction problems with regrouping and fit each problem to its answer in 12 self-checking puzzles. For 2nd and 3rd grade; work sheet, practice page and answer key included.
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About this resource
Description
How to Teach Adding and Subtracting to 1000
This adding and subtracting to 1000 activity gives children hands-on practice with three-digit addition and subtraction. To add or subtract within 1000, children line up the hundreds, tens and ones, then regroup when a place needs it: ten ones make a ten, and ten tens make a hundred. Every problem in this set needs regrouping, so children practice the step that trips most students up. The activity fits 2nd grade and 3rd grade, and an answer key is included.
How to Use the Activity
Print the twelve puzzle cards on one side of the paper and have children cut out each card, then cut it in two on the solid wavy line. One piece shows a column problem and the other piece shows its answer. Children copy a problem onto the Puzzle Work Sheet, solve it, and then look for the answer piece. If the two pieces fit together, the answer is right. If they do not fit, children check their work and try again. Because each puzzle checks itself, this three-digit regrouping puzzle game is perfect for a math center, early finishers or independent practice. A 2nd grade practice worksheet follows with six column problems and two story problems.
What’s Included
- A colorful cover page
- A How to Use page with prep and step-by-step directions
- 12 two-piece self-checking puzzle cards: 6 addition and 6 subtraction
- A Puzzle Work Sheet
- A 2nd grade practice worksheet
- A puzzle answer key and a practice answer key
Why This Activity Helps Kids
- Self-checking puzzles give children instant feedback without waiting for a teacher.
- Copying each problem onto the work sheet builds the habit of lining up place values.
- Mixing addition and subtraction makes children read the sign before they start.
Ideas for Teachers and Parents
Ask children to check a sum by subtracting one addend, or to check a difference by adding. You can also use the adding and subtracting to 1000 activity as a quick warm-up before a place value lesson.
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