10 More and 10 Less
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10 More and 10 Less
10 more and 10 less worksheet: a table of twelve numbers to 120. Fill in 10 less and 10 more for each, or work back to the number when 10 less or 10 more is given. Grade 1, with an answer key.
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Teach it first
10 More and 10 LessA teaching handout to hand out before this sheet: the rule, worked examples and common mistakes.- Pages
- 1
- Last updated
- Time
- About 10 minutes
- Answer key
- Included
- Printing
- Black and white
- Related curriculum
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Find 10 more and 10 less than a two-digit number, and 10 or 100 more or less than a three-digit number, without counting; add and take away tens, and add tens or ones to a two-digit number.
Reviewed by Mrs. Jennifer Mitchell, Teacher. How we check worksheets
How to use this sheet
- Use a hundred chart beside the sheet: 10 more is one square down, 10 less is one square up.
- Before writing, ask which digit will change when you add 10. Only the tens digit changes.
- Have the child read the answer aloud to check it sounds right: 47, 57, 67.
Common mistakes
- Changing the ones digit too, so 10 more than 47 becomes 58. Cover the ones digit: it stays the same.
- Counting on 10 ones one by one instead of jumping a ten. Count by tens from the number instead: 47, 57.
- Getting stuck at a new hundred, such as 10 more than 95. Use the chart or blocks: ten tens make a hundred.
