briggie
Well-known member
- Joined
- Mar 11, 2010
- Messages
- 10,409
Note: This must be done in your head only. Do NOT use paper and pencil or a calculator.
Take 1000
and add 40.
Now add another 1000.
Now add 30.
Add another 1000.
Now add 20.
Now add another 1000.
Now add 10.
What is the total?
v
v
v
v
v
5000 yeah??
Well no its 4100 - go on check with the calculator!!
Take 1000
and add 40.
Now add another 1000.
Now add 30.
Add another 1000.
Now add 20.
Now add another 1000.
Now add 10.
What is the total?
v
v
v
v
v
5000 yeah??
Well no its 4100 - go on check with the calculator!!