Write the name of the period that has the digits 913.
The Correct Answer and Explanation is:
The period that contains the digits 913 is called the thousands period.
Explanation:
In the place value system used in English-speaking countries (and many others), numbers are grouped into periods of three digits each, starting from the right (the units place). Each group of three digits is called a period. The common periods from right to left are:
- Units period (ones, tens, hundreds)
- Thousands period (thousands, ten thousands, hundred thousands)
- Millions period (millions, ten millions, hundred millions)
- Billions period, and so forth.
For example, consider the number: 913,245,678
- The rightmost three digits (678) are in the units period.
- The next three digits to the left (245) are in the thousands period.
- The next three digits (913) are in the millions period.
Now, specifically for the digits 913:
- If these digits appear alone as 913, it is a number less than a thousand, so it belongs to the units period.
- If these digits appear as part of a larger number such as 913,000 or 913,245, they occupy the thousands period.
The thousands period always consists of the digits that represent how many thousands there are in the number. It includes the places for thousands, ten thousands, and hundred thousands.
So, if the digits 913 appear in the thousands period, it means:
- 9 represents nine hundred thousands (900,000)
- 1 represents ten thousands (10,000)
- 3 represents thousands (3,000)
Adding up: 900,000 + 10,000 + 3,000 = 913,000.
Hence, the three digits 913 belong to the thousands period in a number when they are placed three digits to the left of the units period.
Summary:
- Periods are groups of three digits in a large number.
- The digits 913 represent a number in the thousands period.
- The thousands period includes thousands, ten thousands, and hundred thousands.
- For example, in the number 913,245, the 913 is in the thousands period, meaning 913,000.
