Napier's Intellectual Children

In this timeline instructional activity, students solve 7 different problems that include reading a timeline and solving various riddles. First, they complete the timeline at the top by solving each of the riddles in the box. Students determine sum of all their numbers given the total number of digits in each. They also determine number formed by the tens and one digits in a multiple of 9.

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7th - 8th
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For Teacher Use
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Fine Print: Educational Use