Code Sheet

Mathematics, Calculations and numerical method, Games and puzzles, Age 11-14

A Lesson that can be used to check knowledge of Number terms such as factors, multiples and primes, and introduce concepts such as cubed numbers for level 5-6 students. Organise students into max 8 groups, hand out questions and students submit codes to teacher. Enter in excel spreadsheet and cells turn green when correct. Very visual display of class progress and knowledge.


1Group Number______ Enter your code here2Group Number______ Enter your code here

1Name______________________________I can find..... Prime Numbers from 1-100 The first 12 squares and cubes Multiples of any whole number Factors of a number from 1-100 Find the square root of any number Any other comments?Name______________________________I can find..... Prime Numbers from 1-100 The first 12 squares and cubes Multiples of any whole number Factors of a number from 1-100 Find the square root of any number Any other comments?Name______________________________I can find..... Prime Numbers from 1-100 The first 12 squares and cubes Multiples of any whole number Factors of a number from 1-100 Find the square root of any number Any other comments?Name______________________________I can find..... Prime Numbers from 1-100 The first 12 squares and cubes Multiples of any whole number Factors of a number from 1-100 Find the square root of any number Any other comments?

Number Codebreakers All of your answers should be whole numbers less than 100 1. This number is the product of the three smallest odd numbers 2. The fifth term in the sequence 5n-3 3. This number is the difference between three squared and three cubed 4. This number is a multiple of 4 and also a multiple of seven. When the numbers 1-100 are placed in size order it sits next to a multiple of 11. 5. This number is the sum of all of the prime numbers you can find between twenty and thirty. 6. This number is the first prime number multiplied by the second prime number 7. 256 halved, halved and halved again is the same as sharing equally by this number. 8. This number is 1.7 multiplied by the square root of 100. 9. This number is the same as the number of factors you can find