Maths Terms for 11-13 Yr Olds

In geometry, one of the flat surfaces of a solid shape. Example: a cube has six faces.

When a number, or polynomial in algebra, can be expressed as the product of two numbers or polynomials, these are factors of the first. Expressing a number of polynomial as a product of its factors is known as factorising.

Example: 1, 2, 3, 4, 6 and 12 are all factors of 12.

Example: (x-1) and (x+4) are factors of (x² + 3x - 4).

Symbol: ft. An imperial measure of length. 1 foot = 12 inches. 3 feet = 1 yard. 1 foot is approximately 30 cm.

Imperial measurements are rarely used in modern times. 

An equation linking sets of physical variables, and allowing them to be evaluated, i.e. allowing their value to be found using other variables. Plural: formulae.

The result of dividing one integer by a second integer, which must be non-zero. The dividend (number being divided) is the on the numerator (top of the fraction) and the non-zero divisor is on the denominator (bottom of the fraction). Example: 1 divided by 3 is written as 1/3.