Countdown Challenge: Happy Numbers

In this happy numbers learning exercise, students classify numbers as happy or unhappy. They determine the number is happy if the sum of each digit squared eventually ends in the number one. They indicate a number is unhappy if the sum of each digit squared creates an endless loop. This one-page learning exercise contains 100 problems. Examples and explanations are included.

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Resource Details

Grade
7th - 8th
Subjects
Math
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Resource Types
Worksheets
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Audiences
For Teacher Use
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Fine Print: Educational Use