10 More 10 Less Worksheets

Printable place value worksheets for 1st Grade:
Ten and Ones (eg. 17 = __ ten and __ ones)
Count Tens & Ones (with pictures)
Count Tens & Ones (with place value charts)
Tens and Ones (eg. 73 = __ tens and __ ones)

Add Tens & Ones (with pictures)
Add Tens & Ones (eg. 60 + 4 = )
1 more, 1 less, 10 more, 10 less

1 more, 1 less, 10 More, 10 Less Worksheets

Identifying 10 more, 10 less, 1 more, and 1 less than a two-digit number involves understanding the patterns in the base-10 number system.

1. Introduction to Place Value:
   Begin by reviewing or introducing the concept of place value. Remind students that each digit in a number has a specific place and value.
2. Visual Representation:
   Use visual aids such as place value charts, drawings, or manipulatives to represent two-digit numbers. This helps students visualize the relationship between tens and ones.
3. Identify the Two-Digit Number:
   Choose a two-digit number, for example, 45.
4. 10 More:
   Explain that to find 10 more than a number, add 10 to the original number.
   For 45, 45 + 10 = 55.
   Emphasize that only the tens place changes.
5. 10 Less:
   Similarly, explain that to find 10 less than a number, subtract 10 from the original number.
   For 45, 45 − 10 = 35.
   Again, highlight that only the tens place changes.
6. 1 More: For finding 1 more than a number, add 1 to the original number.
   For 45, 45 + 1 = 46. Emphasize that this change occurs in the ones place.
7. 1 Less:
   For finding 1 less than a number, subtract 1 from the original number.
   For 45, 45−1=44.
   The ones place is affected in this case.

Understanding the relationships between a two-digit number and its variations (10 more, 10 less, 1 more, and 1 less) helps students develop a deeper grasp of place value and numerical patterns. Regular practice and interactive activities enhance their proficiency in these concepts.

Have a look at this video if you need to review how to find 10 more, 10 less, 1 more, and 1 less than a two-digit number.

• 1 more, 1 less, 10 More, 10 Less

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(Answers on the second page)
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