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Number Detective

Follow the clues to find the mystery number.

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Six Is the Sum

What do the digits in the number fifteen add up to? How many other numbers have digits with the same total but no zeros?

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(w)holy Numbers

A church hymn book contains 700 hymns. The numbers of the hymns are displayed by combining special small single-digit boards. What is the minimum number of small boards that is needed?

The Thousands Game

Stage: 2 Challenge Level: Challenge Level:1

What kind of number will the units digit need to be to make an even number? What about an odd number?
To make the highest possible number, where would it be best to put the highest digit card?
If you want to make the lowest number, where would it be best to put the lowest digit card?
Don't forget to tell us your reasons for each child being the winner.