International System of Numeration
International System of Numeration
In the International System of Numeration, as it is being used we have ones, tens, hundreds, thousands and then millions.
One million is a thousand thousands. Commas are used to mark thousands and millions. It comes after every three digits from the right.
The first comma marks thousands and the next comma marks millions.
For example, the number 50,801,592 is read in the International System as fifty million eight hundred one thousand five hundred ninety two.
TM | M | HTh | TTh | Th | H | T | O | |||||||||
5 | 0 | 8 | 0 | 1 | 5 | 9 | 2 | |||||||||
2 | × | 1 | ||||||||||||||
9 | × | 10 | ||||||||||||||
5 | × | 100 | ||||||||||||||
1 | × | 1000 | ||||||||||||||
0 | × | 10000 | ||||||||||||||
8 | × | 100000 | ||||||||||||||
0 | × | 1000000 | ||||||||||||||
5 | × | 10000000 | ||||||||||||||
| + | ____________________ | |||||||||||||||
5 × 10000000 + 8 × 100000 + 1 × 1000 + 5 × 100 + 9 × 10 + 2 × 1 | ||||||||||||||||
In the Indian System, it is five crore eight lakh one thousand five hundred ninety two.
Interesting fact :
To express numbers larger than a million, a billion is used in the International System of Numeration: 1 billion = 1000 million.
How many lakhs make a million ?
How many millions make a crore ?
Do you know?
India’s population increased by about
27 million during 1921-1931;
37 million during 1931-1941;
44 million during 1941-1951;
78 million during 1951-1961!
How much was the increase in population during 1991-2001? Try to find out.
Do you know what is India’s population today? Try to find this too.