Maths Dictionary · JSS 2, JSS 3
Number base
Simple meaning
How many digits a number system uses and what each place is worth. We normally use base ten.
Example
In base 5 the places are worth 1, 5, 25, 125, …
See it
From the Converting Between Bases lesson. Try moving things around.
53125
0
5225
2
515
1
501
3
2135 = 58
2 × 25 + 1 × 5 + 3 × 1 = 58
And back again: divide by 5, read remainders upwards ↑
- 58 ÷ 5 = 11 r 3
- 11 ÷ 5 = 2 r 1
- 2 ÷ 5 = 0 r 2
58 = 2135