Adding and Subtracting 10 Using a Number Chart and Place Value Model

This video tutorial teaches how to add or subtract 10 from 3-digit numbers using a number chart. It begins with a review of number ranges and then explains adding and subtracting 10 from 2-digit numbers. The tutorial explores patterns on the 101 to 200 chart and demonstrates adding and subtracting 10 from 3-digit numbers. The lesson concludes with a summary of the key concepts.

What pattern do you notice when adding 10 to 2-digit numbers?

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What happens to the 1s place when you subtract 10 from a number?

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Describe the process of adding 10 to a 3-digit number using a number chart.

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What is the result of adding 10 to 125?

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How does the 10s place change when you add 10 to a number?

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Explain how to subtract 10 from a 3-digit number.

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What is the result of 365 minus 10?

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