how do i come about one naira

is maths perfect or jus tricks

I don't do maths questions on Sundays, I will answer tomorrow.

project8:
how do i come about one naira

here is a simple example.
you have N15

spent - Balance

5 _ 10

5 _ 5

3 _ 2

1 _ 1

1 _ 0
---------------------
15 _ 18
---------------------

You wonder why the Balance side is 18 right? that's because it's a kind of two column cash ledger. In ledger account, you don't sum up what's in the balance column and expect it to always give you a correlative digit with the left side, because each gives a distinctive figure for each row which is dependent on the previous column.