253 million = 253,000,000
Remember the digits names.
0 = units
00 = tens
000 = hundreds
0,000 = thousands
00,000 = tens of thousands
000,000 - hundreds of thousands
0,000,000= millions.
00,000,000 = tens of millions
000,000,000 = hundreds of millions ( as the given number).
So you need 'seven; digits in a number to reach a million. The commas are used to separate every three digits. A full stop / period is only used to indicate decimals.
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It is a whole number and its simplest form is 253.
2.53 X 102 ======= Sometime writing scientific notation is extraneous work. 253 is short enough to write in standard form, usually.
253
You write 8.8 million as 8,800,000
10 13/24 To explain this answer: 24 can go into 253 a total of 10 times. That creates the 10. 24 * 10 = 240. The difference between 253 and 240 (253 - 240) is 13. That gets the 13. Denominator stays the same. That gets the 24.