Question

Fill in the blank.
1 million = ________ lakh.

Answer 1

Hint: There are many numbering systems in the world. The International numbering system is different from our domestic Indian (Hindu - Arabic) numbering system (see Note below).
Start by writing the numeral for 1 million and then count the number of places to find its equivalent name in the Indian number system.
Recall that 1 million = 1, 000, 000.

Complete step-by-step answer:
Writing 1 million in its numeral, we have: 1 million = 1, 000, 000.
There are seven digits: six 0s and one 1.
If we start naming them in the Indian system from the right-hand side, we have: (Ones, Tens, Hundreds) + (Thousands, Ten Thousands) + (Lakh + Ten Lakh) = 7 digits.
Therefore, the number 1 million = 10 Lakh.

Note: A numeral system (or system of numeration) is a writing system for expressing numbers; that is, a mathematical notation for representing numbers of a given set, using digits or other symbols in a consistent manner. Some examples are the Roman number system, the International number system and the Indian numbering system.

International Numbering System:

Number	Scientific Notation	Name
1	$ 1\times {{10}^{0}} $	Ones
10	$ 1\times {{10}^{1}} $	Tens
100	$ 1\times {{10}^{2}} $	Hundreds
1, 000	$ 1\times {{10}^{3}} $	Thousands
10, 000	$ 1\times {{10}^{4}} $	Ten Thousands
100, 000	$ 1\times {{10}^{5}} $	Hundred Thousands
1, 000, 000	$ 1\times {{10}^{6}} $	Millions
10, 000, 000	$ 1\times {{10}^{7}} $	Ten Millions
100, 000, 000	$ 1\times {{10}^{8}} $	Hundred Millions
1, 000, 000, 000	$ 1\times {{10}^{9}} $	Billions
10, 000, 000, 000	$ 1\times {{10}^{10}} $	Ten Billions
100, 000, 000, 000	$ 1\times {{10}^{11}} $	Hundred Billions
1, 000, 000, 000, 000	$ 1\times {{10}^{12}} $	Trillions
...		...

Indian Numbering System:

Number	Scientific Notation	Name
1	$ 1\times {{10}^{0}} $	Ones
10	$ 1\times {{10}^{1}} $	Tens
100	$ 1\times {{10}^{2}} $	Hundreds
1, 000	$ 1\times {{10}^{3}} $	Thousands
10, 000	$ 1\times {{10}^{4}} $	Ten Thousands
1, 00, 000	$ 1\times {{10}^{5}} $	Lakhs
10, 00, 000	$ 1\times {{10}^{6}} $	Ten Lakhs
1, 00, 00, 000	$ 1\times {{10}^{7}} $	Crores
10, 00, 00, 000	$ 1\times {{10}^{8}} $	Ten Crores
...		...