n
50 L Fifty
60 LX Sixty
70 LXX Seventy
80 LXXX Eighty
90 XC Ninety
100 C One hundred
200 CC Two hundred
300 CCC Three hundred
400 CCCC Four hundred
500 D Five hundred
600 DC Six hundred
700 DCC Seven hundred
800 DCCC Eight hundred
900 DCD Nine hundred
1000 M One thousand
1100 MC One thousand one hundred
1500 MD One thousand five hundred
1812 MDCCCXII One thousand eight hundred and twelve

In the above list you perceive the numeral letters are I, V, X, L, C,
D, and M; the letter that stands for a smaller sum put before one that
denotes a greater takes so many from it, and that after it adds so many
to it.

The numbers you learned long ago; but I don't think you know the
numeration table, it will teach you to read any number of figures not
exceeding nine: the last figure on the right hand denotes _units_, or
single figures, the one before that tens, then _hundreds_, _thousands_,
_tens of thousands_, _hundreds of thousands_, _tens of hundreds of
thousands_, _millions_, _tens of millions_, _hundreds of millions_, now
my dear read the following number, 123,456,789.

_Anne._ One hundred and twenty three millions, four hundred and fifty
six thousand, seven hundred and eighty nine.

_Mrs. Harley._ Right; it is absolutely necessary to be able to read
figures perfectly, before you can learn arithmetic.

_Anne._ What is arithmetic, mamma?

_Mrs. Harley._ The act of numbering, or computing by numbers, my dear.
The four principal rules of arithmetic are addition, subtraction,
multiplication, and division.

_Anne._ I wish you would explain them to me.

_Mrs. Harley._ Addition teaches to collect several numbers together in
order to know their total value. The answer to a question in addition
is therefore called the _sum_, _total_, or _amount_; subtraction teaches
to take a less number from a greater, in order to know the remainder.
The answer in subtraction is called the _remainder_, or _difference_.

Multiplication teaches to find the amount of any given number repeated a
certain number of times. The answer in multiplication is called the
_product_. The three terms made use of in multiplication are, the
multiplicand, or number to be multiplied; the multiplier, or number that
multiplies; and the