Transcript The Grid Method

The Grid Method Multiplication
By Harry Maurice And
Oliver Amos
Why it is useful
1. It is straight forward so if you make a
mistake you can see where you went
wrong.
2. It is quick and easy.
3. There is not much to slip up on.
Starting off
89 x 123
X
100
20
3
80
9
First
partition
each
number like
this.
Where everything goes
X
80
9
100
8000
900
20
1600
180
240
27
3
Now times
where the
arrows meet
(where the
dots are).
Totalling
X
100
20
3
80
Now total up
all the circled
numbers.
9
8000
900
1600
180
240
27
=
=
=
8900
1780
+
267
10947
It’s easy as 1…2…3!!!
So just follow these 3 easy
steps and you can solve any
multiplication (it doesn’t just
have to be 2 or 3 digit
numbers).
We hope you enjoyed
our show!!!