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Less Is More
Age 7 to 11
Challenge Level 
Here are some examples to help you understand the scoring system:
Score = 57 (both number sentences are correct)
Score = 33 (only the bottom number sentence is correct)
With the numbers 1-8, it is possible to score more than 117!
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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?
ABC
In the multiplication calculation, some of the digits have been replaced by letters and others by asterisks. Can you reconstruct the original multiplication?