Finding 10 More 10 Less Activity
This finding 10 more 10 less activity helps 1st and 2nd grade children use a hundred chart to find 10 more and 10 less. Practice page and answer key included.
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About this resource
Description
Knowing that adding or taking away ten changes only the tens digit is a big step in understanding place value. This finding 10 more 10 less activity helps first and second graders see that pattern on a hundred chart. Each card shows a number with its neighbors, and children find the numbers that are 10 less and 10 more, one row up and one row down.
The pack has 12 fold-over number cards, so there is no double-sided printing. Print the sheets, fold each one on the center line, and cut on the dashed lines. The front of each card shows a number in the middle of a plus shape with the boxes above and below left empty. The back shows the same shape with the answers filled in, so children can check their own work. A full Hundred Chart page is included for children to use while they learn, and a practice worksheet with new numbers lets you check each child on their own. The activity works well in a math center, with a partner, or in a small group lesson.
What’s Included
- A colorful cover page
- A How to Use page with materials, prep tips, and simple steps
- 12 fold-over number cards with a self-check back
- A Hundred Chart page
- A 1st grade practice worksheet: write 10 less and 10 more
- Answer keys for the number cards and the practice worksheet
Why This Activity Helps
First, moving one row up or down on the hundred chart shows children why 10 more and 10 less change only the tens digit. Second, the plus shape keeps 1 less and 1 more in view, so children see how the chart is built. Third, the self-check back on every card lets children practice on their own and fix mistakes right away.
Ideas for Teachers and Parents
Start with the hundred chart beside the cards, then cover the chart once children see the pattern. Ask children to explain which digit changed and why. This kindergarten addition activity can also stretch older learners: ask for 20 more or 20 less. Pair the finding 10 more 10 less activity with the resources below for more place value practice.
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