Finding Ten More and Ten Less
- Find ten more or ten less than a two-digit number.
- Use place value to see how changing the tens digit changes the number.
1st Grade Math Drills Worksheets
Free math drills worksheets with answer key. No login or account needed. We've got them all multiplication drills, addition drills, subtraction drills and more! Great for teachers or for homeschool.
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About these worksheets
Addition drill worksheets cover the full range of basic fact fluency. Problem sets include adding within 5, adding and subtracting within 10 and 20, finding ten more and ten less, adding 9s with mental math shortcuts, adding to multiples of ten, and individual fact families from 0s through 10s. Mixed drill sets and missing addend problems are also included. Each worksheet contains 50 to 100 problems for timed practice.
Add and Subtract (Within 20)
- Add two numbers with sums up to 20.
- Subtract a number from another number and find the difference up to 20.
- Build speed and accuracy with basic addition and subtraction facts.