Question

Express the following number as international numbers system:
3, 45, 90, 430
(a) Thirty four million five hundred ninety thousand hundred thirty.
(b) Thirty four million five hundred nine thousand four hundred thirty.
(c) Thirty million five hundred ninety thousand four hundred thirty.
(d) Thirty four million five hundred ninety thousand four hundred thirty.

Answer 1

Hint: Find out the place value of each digit of the given number. Then write it in words. Like in hundreds’ place we have 4 and in tens’ place we have 3, in one’s place we have zero. That means it is four hundred and thirty.

Complete step-by-step answer:
To write the number 3, 45, 90, 430 in words we need to understand the place value of each digit.
Place value describes the position or place of a digit in a number. Each digit has a place in a number.
To find out the place values of every digit in a number we always start from the right side and then we move to the left side one by one.
First we have one’s place. Here in one’s place we have 0. Therefore, we have 0 one.
Then we have tenth place. Here we have 3 in tenth place. Therefore, we have 3 tens = thirty.
Then we have hundreds’ place. Here we have 4 in hundreds’ place. Therefore, we have four hundred.
Then we have thousands’ place. Here we have 0 in thousands’ place. Therefore, we have 0 thousand.
Then we have ten thousands’ place. Here we have 9 in ten thousands’ place. Therefore, we have 9 ten thousands = ninety thousand.
Then we have hundreds of thousands’ place. Here we have 5 in a hundred thousands’ place. Therefore, we have 5 hundred thousand.
Then we have one millions’ place. Here we have 4 in one millions’ place. Therefore, we have 4 million.
Then we have ten millions’ place. Here we have 3 in ten millions’ place. Therefore, we have 3 ten millions = thirty million.

Therefore,
Thirty million + four million + five hundred thousand + ninety thousand + 0 thousand + four hundred + thirty + zero = thirty four million five hundred ninety thousand four hundred thirty.
Hence, option (d) is correct.

Note: Alternatively we can find out the correct answer by cancelling out the wrong options. Like we have 4 in hundreds’ place, 3 in tens’ place and 0 in one’s place. Therefore we have four hundred thirty. Hence option (a) is wrong.
Find out the place values correctly otherwise we will get the wrong answer.