1. Saturday, 09 September 2006 ©RSH Number Square and Cube Numbers

2. Saturday, 09 September 2006 ©RSH Square Numbers 2 x 2 =4, 3 x 3 = 9, 4 x 4 = 16 etc. 4, 9, 16 are square numbers. A square number can be written in the form n x n (where n is an integer). 25 is a square number because 25 = 5 x 5. Square Numbers 2 x 2 =4, 3 x 3 = 9, 4 x 4 = 16 etc. 4, 9, 16 are square numbers. A square number can be written in the form n x n (where n is an integer). 25 is a square number because 25 = 5 x 5. Notes

3. Saturday, 09 September 2006 ©RSH Cube Numbers 2 x 2 x 2 =8, 3 x 3 x 3 = 27 etc. 8 and 27 are cube numbers. A cube number can be written in the form n x n x n (where n is an integer). 64 is a cube number because 64 = 4 x 4 x 4. Cube Numbers 2 x 2 x 2 =8, 3 x 3 x 3 = 27 etc. 8 and 27 are cube numbers. A cube number can be written in the form n x n x n (where n is an integer). 64 is a cube number because 64 = 4 x 4 x 4. Notes

4. Saturday, 09 September 2006 ©RSH Exercise 1.Write down the first 15 square numbers. 2.Write down the first five cube numbers. 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225 8, 27, 64, 125, 216