mathsvocabularya

8/3/2019 mathsvocabularya

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1

abacus

An instrument for calculating.



2

acute angle

An acute angle is an angle less than 90° which can appear sharp.

acute angle



3

add

To put numbers together. For example, 3 + 4 = 7.



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addend

Any number which is added to obtain

the sum.

For example, 3 + 7 + 8 = 18(addends) (sum)



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addition

The act of adding ( + ).



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adjacent

Next to. Adjacent sides of a triangle have a common vertex.

AB and BC are adjacent because they have a common vertex, B.a

c b



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Algebra

Part of Mathematics that involves reasoning by the use of

symbols to discover unknown values.For example, x + 10 = 26, x=16.



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algorithm

The setting out of mathematical problem in a certain way.

For example,

457 989 659 + 94 - 57 x 35

----- ----- -----

----- ----- -----



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a.m.

ante meridiem (the morning). Any time from midnight to noon.



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analogue clock

A clock face with numbers 1 to 12 and two hands.



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angle

The amount of turn between two lines around a common point.

A figure made of two rays with a common end point.

ray amount of turn

vertex

ray



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annual

An event that happens once every year.



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anti-clockwise

The opposite direction to the normal movement of a clock.



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apex

The opposite direction to the normal movement of a clock.

apex



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approximation

To make an estimate of an amount.

For example, 896 x 6 can be rounded to 900 x 6 to give an

approximation of about 5400.



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arc

A section of a curve with two end points.

arc



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area

The surface covered by any 2D shape.

For example, Area = 12 m² 4 m

3 m

Area can be measured in cm², m², hectares, km².



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arm

A term often used to describe the rays that form an angle.



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ascending order

To replace numbers in increasing order from the smallest to

the largest.

For example, 21, 18, 5, 25, 11, 2 15 becomes 2, 5, 11, 15, 18 21, 25.



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attribute

Any characteristics that can be attributed to a shape when

classifying.

For example, shapes can be classified according to size, colour,

shape, thickness, number of sides.



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average

The total of a series of numbers divided by the amount of

numbers in the group.

For example, to find the average of 16, 23, 14, 35, 12,add 16 + 23 + 14 + 35 + 12 and divided by 5 (number of scores).

The average is 20.



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axis

A line which divides a shape in half.Example 1: Example 2.

The vertical and horizontal axes of a graph..

vertical axis

horizontal axis



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axes of symmetry

Also referred to as line of symmetry .

The imaginary lines that when a shape is folded along its

both sides will match.



24

MATHS

VOCABULARY

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