12-hour clock a system of measuring time in terms of a repeating period of 12 hours 24-hour clock

divide split up into parts
dividend a number that is being divided
divisible one whole number is divisible by another if it is a multiple of it
division (of a scale) the value between successive marks on a scale
divisor the number by which another number is divided
edge the line where two faces of a solid meet
equal being the same
equally likely a set of outcomes with the same chance of happening
equation two different mathematical expressions, both having the same value, separated by an equals sign (=)
equation a way of labelling a line on a grid
equilateral having all sides the same length
equilateral triangle triangle in which all sides are equal and all angles are 60°
equivalent fractions fractions that represent the same amount
estimate approximation of a number or amount, based on a calculation with rounded numbers
even chance an equal chance of happening or not happening; an example is getting a
head when you throw a coin
event an action that can have different outcomes; throwing a dice is an event, scoring a six is an outcome
expand (brackets), to multiply all parts of the expression inside the brackets by the term alongside the bracket
experimental probability a probability
estimated from data
expression a collection of symbols representing numbers and mathematical operations, but not including an equals sign (=)
face flat side of a solid
factor a factor of a whole number will divide into it without a remainder; 6 and 8 are factors of 24
finite sequence a sequence that has an end
formula an equation that shows the relationship between two or more quantities
formulae plural of formula
fraction a part of a whole
frequency how many times a number occurs in a set