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

likely more than an even chance line of symmetry a line dividing a
shape into two parts, each part being
a mirror image of the other
line segment a part of a straight line between two points
litre (l) standard unit of capacity
lowest common multiple the smallest possible common multiple of two numbers; 24 is the lowest common multiple of 6 and 8
lowest terms a fraction is reduced to its lowest terms by dividing both numerator and denominator by their highest common factor; it cannot be simplified further
map be converted, by means of a function,from a value in one set of numbers into a value in another set of numbers
mapping diagram a diagrammatical
representation of a function
mass the amount of substance in an object; sometimes the word weight ’ is used in everyday speech
mean To find the mean of a set of numbers, add them and divide by how many there are
median The middle number when a set of numbers is put in order
metre (m) unit of length; standard unit of length
metric units measurements based on multiples and divisions of ten; the most common units of measurement
mid-point the centre point of a line segment
millilitre (ml) one thousandth of a litre
millimetre (mm) one thousandth of a metre
mirror line a line dividing a diagram into two parts, each being a mirror image of the other
percentage a fraction written out of 100, as ‘per cent’; a quarter is 25%
perimeter the length of the boundary of a flat shape (perimeter of a circle is called a circumference)
perpendicular lines meeting or crossing at right angles
pictogram simple graph made up of pictures or symbols to represent information
pie chart a circle split into sectors, each sector represents its share of the whole
place value the value of the digit in a number based on its position in relation to the decimal point