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
...		...