Question

Numeral for five hundred three million eight thousand seven hundred two is \[\]
A. $ 50,03,80,702 $ \[\]
B. $ 50,38,00,702 $ \[\]
C. $ 503,008,702 $ \[\]
D. $ 50,30,80,702 $ \[\]

Answer 1

Hint: We recall the numeral form of a number and number written in words. We recall the Indian numbering system which uses words like lakhs and crores and the international numbering system which uses millions and trillions. We see that the question has the word ‘million’ and hence we follow the international numbering system. \[\]

Complete step by step answer:
We know that we can convert numbers written in words to numbers in standard or numeral form where we use symbols for 10 digits which are 0,1,2,34,5,6,7,8,9. \[\]

We know that in the international numeral system, we use words like ones, tens, hundreds, ten thousand, hundred thousand, million, ten million, etc to represent place value. We use the comma separator in the international numeral system after every three digits from the right-hand side.\[\]

We are asked to convert five hundred three million eight thousand seven hundred two into numeral form. So let us start writing from right hand side. We write 2 for two and put a 0 for tens’ place and then write 7 for seven hundred 2 as
\[\begin{matrix}
   \_ & \_ & \_ & \_ & \_ & \_ & 7 & 0 & 2 \\
\end{matrix}\]
We write 8 in the thousand place for right to write eight thousand seven hundred two as
\[\begin{matrix}
   \_ & \_ & \_ & \_ & \_ & 8 & 7 & 0 & 2 \\
\end{matrix}\]
We have to next write three million with number 3. We put a 0s for the place of 10 thousand and 100 thousand and write 3 in million’s place as
\[\begin{matrix}
   \_ & \_ & 3 & 0 & 0 & 8 & 7 & 0 & 2 \\
\end{matrix}\]
We put 50 before 3 to represent five hundred and three million.
\[\begin{matrix}
   5 & 0 & 3 & 0 & 0 & 8 & 7 & 0 & 2 \\
\end{matrix}\]
We put commas after every three digits from the right hand side and have the numeral for as;
\[\begin{matrix}
   5 & 0 & 3, & 0 & 0 & 8, & 7 & 0 & 2 \\
\end{matrix}\]
So the correct choice is C.\[\]

Note:
 We must understand the place value for writing in numeral form. The rightmost place is called unit place or one’s place, then ten places, and so on. We note that in Indian Numeral System we use the words like ones, tens, hundreds, thousands, ten thousand, lakh, ten lakh, crore, etc to represent place value. We use the comma separator in Indian Numeral System after three digits from the right-hand side and after every two digits towards the left-hand side.