Today it was maths week and we had to find all the prime numbers up to 100. First we crossed out all the even numbers apart from two. Then we crossed out all the answers to the three times tables. After that we crossed out all the answers to the five times tables, then the six times tables. We kept on crossing out answers to the times tables until there were only 25 numbers left. These we figured must have been the prime numbers up to 100.
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