In groups of how many numbers they are?
Three.
How do you pronounce 3 in ordinal number?
Third.
This is correct? On May 13th, 2007 Inés was born.
Incorrect, the correct answer is: On May 13, 2007, Inés was born.
How do you say 2 in ordinal numbers?
2nd
In where they are used?
Mathematics, cryptography and statistics.
What are ordinals numbers?
Numbers that indicate the exact position of something.
When do we use ordinal numbers?
We use an ordinal number when referring to a specific day without reference to the month.
In which case we don't separate numbers in units of ten?
Do we use ordinal numbers for ranking things?
Yes
When is the exception of the years when it is written and not with numbers?
The years should be expressed as numerals except at the beginning of a sentence.
How much is 500 + 750?
1,250 - one thousand two hundred fifty
How do you say this number when using it for math? - 1,011
One thousan eleven.
How do you write 83rd?
Eighty third.
How many parts do we divide the dates?
In two parts.
How much is 900*3?
2,700 - two thousand seven hundred.
How do you say this number? - 31,256,721
Thirty-one million two hundred fifty-six thousand seven hundred twenty-one
How do you write 27th?
Twenty seventh.
When do we say: “we said two thousand and- the number”?
In exception of 2000 to 2010, we say two thousand and- the number.
How do you say this number in ordinal and in a cardinal way: 1152?
Ordinal: one thousand, one hundred and fifty-second.
Normal: one thousand, one hundred and fifty-two.