Abacus Lesson 5 //Simple Addition (#'s 0-5 only) HUNDREDS'S column // Step by Step // Tutorial Video Lecture | Abacus Master Class:Become an Expert (English) - Personal Learning

Adding- simple addition using the earthly beads
using the hundreds column
So in this this lesson we're going to do
exactly the same thing is we've done in
the the two other lessons
only now, we're getting into the hundreds
now that might be intimidating for some
people
hundreds...hundred is a big number...I don't know if I can add hundreds...
well...
you know what?
adding one or one hundred is as easy-
it's just as easy to add numbers in the
hundreds as it is in the any other as
the ones column!
Because it's
all the same. We're always just
focusing
on one
column at a time.
So, we're getting into this serious business- but
I'm telling ya, it's not much different than
anything else but we're going to add-
doing simple addition
using only the earthy beads
but we're going to be doing numbers that are
in into the hundreds
Now in the hundreds, that can be any number from zero up to
two hundred and thirty one, or four
hundred forty two all the way up to
nine hundred and ninety nine
So, here's a problem for you
Let's see if we can do it
put the number
two hundred and thirty one
in your abacus
and we're going to add to that
one hundred and eleven
so two
hundred and thirty one
It looks like this
two hundred
thirty
one
there's the number two hundred and
thirty one on your abacus.
Now, this is an easy one....I think you'll be able to do this:
Add one hundred and eleven
(that's all ones- if you write the number 111, it's just three ones)
and one 1 goes in each of these columns- So we go one - one - and one!
We just added 111 to that and what are we left with?
three hundred
forty two
so two hundred and thirty one plus one
hundred and eleven is
...you just need to read it on your abacus, it's easy!
three hundred and forty two. See how fast you can come up with that?
it's pretty quick
one of the things with- I love the abacus!
Alright, lets do another one.
Even though it's in the hundreds,
it's a piece of cake.
So one hundred and twenty three
...there's our number
and let's add to that
three hundred
and twenty-one
So, three hundred and twenty one
and three beads here
twenty...one
OH...what'd I end up with?
four hundred and forty four
four hundred
forty and four
I have a four in the hundreds column.
(and so I say four hundred)
Four in the tens column.
(and I say that 'forty')
and, four in the ones column
is four.
four hundred and forty four
Alright, let's do another one.
Ok, let's see if you can do this one.
It's going to be tricky because I'm going to throw a zero at ya.
so here we go put in the number two
hundred and forty-one
looks like this
two hundred forty one
You can do that, piece of cake.
and let's add to that: two
hundred forty one
plus
two hundred and three
so what it is? Two hundred
and three. How do I write that?
two hundred and three is written
two zero three
so let's put that in our abacus
Two, zero (I don't do anything ), three
Oh my goodness. Look at that we came up with the same number.
four hundred forty-four again
so two hundred and forty-one plus two
hundred and three is
four hundred and forty four
hour hundred forty four
Alright, let's do something a little bit different
Let's see if you can do this one:
uh... this is going to be tricky...
well, not really.
Put the number one hundred in your abacus.
the number of one hundred
is written
one zero zero
zero on the ones column
zero in that tens column
but one in the hundreds column
that number reads one hundred
so we're going to do that
one hundred-plus
twenty-one
(well actually, that's easy)
twenty and one
one hundred-plus twenty-one is one
hundred and twenty one.
Now it's good that you practice this because...
a lot of beginning math students
don't really get the columns thing or how
numbers are separated into different
columns
That's one of the things that I love about the abacus.
It helps you visualize that a little bit better.
Let's do another problem.
let's put the number two hundred
fourteen one in your abacus.
two hundred
forty one
so there's the number two hundred forty
one and we are going to add to that the
number
one hundred and two
two hundred forty one plus one hundred
and two
now how do we write the number one
hundred and two?
We have a one
a zero
and a two.
So, write that number down so you can translate it visually
into your abacus. But here's what we do.
We just add a one
a zero (and nothing changes here)
and a two.
and what's the number that we end up
with?
three hundred
and forty three
so two hundred and forty-one
plus one hundred and two is
three hundred and forty-three. Holy Cow
you guys are doing-
these are massive numbers! You're already
adding in the hundreds and look what a
piece of cake it is- You're just doing one
column
at a time
So, any number that you add, whether it's
ten or ten million
all you have to focus on is
each column as you're adding them together
piece of cake.
you can do this
so here we go
hopefully you're getting
how to do this simple addition using
the earthly beads by now
i think you're getting...
you're smart
That's what your mom told me. Shoe told me you're really smart.
and all it takes is...you know how to do this stuff.
BUT you gotta practice
SO,
go get your practice sheet, print it off of the website.
and
work through these problems
even though you could probably do it in your head and do it the other way,
It's good for you to get used to using the abacus.
It's going to get harder from here on out.
Well, it's not going to get 'harder'
It's going to get 'funner'
That's, I mean...
the abacus really isn't hard, it's just fun.
It's neat, it's going to be fun.
It's going to get funner from here on out.
Print off the worksheet
and work through the problems
using your abacus.