Question

Write \[815642120\] in words (in the International System)

Answer 1

Hint: Here we are asked to convert \[815642120\] in words and in the International system. So with the help of our knowledge of the international number system we will get the desired result. Firstly from the right hand side we will form groups of digits starting with a group of three digits and afterwards we will write it in words.
Formula: We will solve the above question by using the concept behind the international number system. We will form groups of digits starting with a group of three digits from the right hand side. We will place the commas. The first comma is placed after hundreds of places, the use the place values and then write in words.

Complete step-by-step solution:
As we have to write \[815642120\] in the international system and in words.
So firstly we will rewrite the given number with commas. The first comma will be placed at the hundreds place and commas are placed after every three digits. The value of the places in the international system of numeration includes Ones, Tens, Hundreds, Thousands, Ten Thousands, Hundred Thousands, Millions, Ten Million and so on.
So we get \[815,642,120\]
Now we will combine the numbers in words by the help of place values. So starting from the right hand side of the number and by the use of place values we will get Eight hundred fifteen million six hundred forty two thousand one hundred twenty
Hence we can write \[815642120\] in words as Eight hundred fifteen million six hundred forty two thousand one hundred twenty in the international system.

Note: Remember the values of the places in the international system of numeration. While solving such types of questions we need to be careful as we may commit mistakes in a hurry and keep in mind to write thousand after million instead of hundred. Do not get confused on placing commas in the international system and Indian system of numeration.