How to remember
Annual interest formula remember
The formula is:
`A=P(1+r/n)^(nt)`
To remember this think
The annual that was most interesting in my childhood:
Annual of most interest had a front cover that looked like a face.
Draw this interesting face and you won't forget this formula
Note:
Rin nearly spells ring, which many people have in their nose or eyebrows.
Nut is a reference to your head where ‘nt’ sits.
P is eating Pea soup.
Now turn this sideways
Do a quick sketch – Then rotate it
Formula symbol meaning
`A=P(1+r/n)^(nt)`
How do you know what each symbol means?
From our picture:
1. Annual book that was most interesting.
A = Annual interest formula
But the A also stands for ALL as in all the total interest.
2. Pea green soup (Principal).
And we always start with the soup don’t we? (Starting amount)
P = Principal (starting amount)
3. r can only be rate
r = rate of interest
(What else could it be?)
4. t = time (in years)
(What else could it be?)
5. n = If n stands for night time, there are 365 nights in a year. So if the interest compounded every night n would be 365.
n = number of compounds in a year.