A number which only has two factors: 1 and itself.
Bigger than 0.
The whole group of people or objects you are interested in when conducting a questionnaire or survey.
To mark on a graph with a cross.
The value each position a digit has in a number.
Example: Hundreds, Tens and Units.
Two lines which meet at right angles.
🔑 Key Perpendicular Topics:
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The distance around the outside of a shape.
Working out the percentage an amount has increased or decreased by.