Abacus Lesson 16 // Simple Subraction (#'s 0-10) TEN'S column // Step by Step // Tutorial Video Lecture | Abacus Master Class:Become an Expert (English) - Personal Learning

all right in this lesson we will be
doing simple subtraction with the
heavenly and earthly beads in the tens
column alright so you've done this
before and I know you can do this is a
piece of cake so here we go tens column
put the number 92 on your abacus a nine
and a two how do we write it well now
nine and a two so nine two there is the
number 92 we have a nine here 5 plus 4
is 9 and a two here two beads are
touching the center beam so with their
beads are counted when they're touching
the center beam and they're not counted
when they're away from the center beam
okay so 92 the problem is 92 minus 51
92 minus 51 well how do I write the
number 51 it's a five and one so in the
tens column I'm going to be taking away
the number five piece of cake
all I did had to do is that okay and a 1
in the ones column piece of cake so 92
minus 51 is what numbers we have here
let's see oh that's a 4 and that's a 1
41 92 minus 51 is 41 all right let's do
another one let's do let's do a really
big number like 89 so 89 we have an 8
here and a 9 here so that number is 89
and we are going to subtract from that
the number 25
so 89 minus 25 is well let's see how do
I number 25 is a 2 and a 5 so I take
away 2 here and I got to take away 5
here so 89 minus 25 is what number do we
have here we have a 5 and a 1 that's 6
ok just slip that up a little and what
do we have here there's 1 2 3 4
4 so 89 minus 25 is 64 a 6 and a 4 is 64
89 minus 25 is 64 all right let's do
another the throat let's use like five
so highlight fives 75 so do the number
75 put the number 75 on your abacus
you're awesome abacus 75 a 7 & a 5 is 75
and we are going to take from that
number 25 so 75 minus 25
well the number 25 is written at 2 and a
5 so we have to take 2 from the tens
column and 5 from the ones column
because that's how 25 is written so 1875
minus 25 is well we take away 2 here and
we take away a 5 there and what are we
left with
oh just a 5 and a zero what's a what's a
5 and a 0 5 and a zero is 50 so 75 minus
25 is 50 that is the number 50 all right
let's do one more and I think you'll
have this
okay let's do something we got one of
those that's 71 put the number 71 on
your abacus 71 there's the number seven
seven and one is 71 so let's 71 minus
eleven how do we write the number eleven
it's a 1 and a 1 we take away one from
each of these columns so take away one
and take away 171 minus 11 is what
number do we have here we have a 6 in
this column and a zero in this column so
six and a zero is 60 71 minus 11 is 60
all right so that was all pretty darn
simple and I'm sure you can do it so go
prove how go prove how awesome you are
print off your worksheet and zip through
all those problems crank them out with
your abacus and see if you get them all
right when you first try without even
hardly thinking that your fingers just
working with the abacus just get it all
right without even hardly thinking
because that's what you do it's a piece
of cake
yeah so print off that worksheet and
work through these problems of doing
simple subtraction if the heavenly an
earthly beads in the tenths column and
then come back and watch the next video
you