1. 1 million = how many hundred thousand?
2. 1 crore = how many ten lakhs?
3. Insert comma suitably in 67810138 by using International System.
4. 1 centimetre =? millimetres
5. 1 metre =? centimetres
6. 1 metre =? millimetres
7. 1 Kilometre =? metres
8. 1 km = ? mm
9. 49 to the nearest tens is
10. 123 to the nearest tens is