2, 4,…
even number(s)
Shaped into parallel ridges and grooves
Corrugated
a unit of measurement of temperature or angles
Degree
To put two or more numbers or amounts together to get a total
to add
Having a larger distance from one side to the other than is usual or expected
Wide
1, 3,…
odd number(s)
A two-dimensional shape in which all points are equidistant from a center point
Circle
The relationship between the mass of a substance and its size
Density
To add to something in order to make it bigger or longer
to extend
Rough and not smooth or soft, or not in very small pieces
Coarse
÷
(to) divide; division
A closed figure with eight sides
Octagon
The amount of space that is contained within an object or solid shape
Volume
To invent a plan, system, object, etc., usually using your intelligence or imagination
to devise
Not even or smooth, often because of being in bad condition
Rough
×
(to) multiply; multiplication
A 3D figure with identical square faces
Cube
The amount by which a measurement is different from a fixed number or amount
Deviation
To cause something or someone to change direction
to divert
Strong and tight
Firm
–
(to) subtract; subtraction
two lines (or a line and a plane) that meet at a right angle (90°)
Perpendicular
The amount by which a measurement or calculation might change and still be acceptable
Tolerance(s)
To do something to correct or improve something that is wrong
to remedy
Different from what is usual or expected in behaviour, ideas, methods, etc.
Unorthodox