Find 10 more or less than a 2-digit number.
Lesson 4 / 15
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I can find 10 more or 10 less than a two-digit number.
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When finding 10 more or 10 less than any two-digit number, the ones digits does not change.
When finding 10 more than a number below 100, the tens digit increases by one.
When finding 10 less than a number below 100, the tens digit decreases by one.
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