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Sets of Numbers Poster

Age 7 to 11
Challenge Level Yellow starYellow star
  • Problem
  • Student Solutions

There are lots of different solutions to this challenge. You might have thought of, for example:

even numbers {2, 8, 36, 56, 64, 136}
odd numbers {3, 13, 17, 27, 39, 49, 51, 91, 119, 121, 125, 143}
multiples of 2 {2, 8, 36, 56, 64, 136} the same as even numbers!
multiples of 3 {3, 27, 36, 39, 51}
multiples of 4 {8, 36, 56, 64, 136}
multiples of 7 {49, 56, 91, 119}
multiples of 8 {8, 56, 64, 136}
square numbers {36, 49, 64, 121}
cube numbers {8, 27, 64, 125}
prime numbers {2, 3, 13, 17}
triple digit numbers {119, 121, 125, 136, 143}
numbers with double digits {13, 17, 27, 36, 39, 49, 51, 56, 64, 91}

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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