Once you reach 100, counting continues by units and tens* between 100 and 200, and so forth thru 900. For numbers above 1000, a separate thousand figure is used, by units, tens, and hundreds, until 999,999 which is followed by one million.
Examples:
100 = one hundred, 101 = one hundred and one, 110 = one hundred and ten, 199 = one hundred ninety-nine
200 = two hundred, 201 = two hundred and one, 299 = two hundred ninety-nine
900 = nine hundred, 901 = nine hundred and one, 999 = nine hundred ninety-nine
1000 = one thousand
1001 = one thousand and one
1100 = one thousand one hundred
1101 = one thousand, one hundred and one,
1110 = one thousand, one hundred and ten
1199 = one thousand, one hundred ninety-nine
1999 = one thousand, nine hundred ninety-nine
2000 = two thousand
2001 = two thousand and one
2100 = two thousand one hundred
2101 = two thousand, one hundred and one,
2110 = two thousand, one hundred and ten
2199 = two thousand, one hundred ninety-nine
2999 = two thousand, nine hundred ninety-nine
3000 = three thousand
4000 = four thousand
5000 = five thousand
6000 = six thousand
7000 = seven thousand
8000 = eight thousand
9000 = nine thousand
9001 = nine thousand and one
9100 = nine thousand one hundred
9101 = nine thousand, one hundred and one,
9110 = nine thousand, one hundred and ten
9199 = nine thousand, one hundred ninety-nine
9999 = nine thousand, nine hundred ninety-nine
* Here are the units and tens
1 = one
2 = two
3 = three
4 = four
5 = five
6 = six
7=seven
8 = eight
9 = nine
10 = ten
11 = eleven
12= twelve
13 = thirteen
14 = fourteen
15 = fifteen
16 = sixteen
17 = seventeen
18 = eighteen
19 = nineteen
20 = twenty
30 = thirty
40 = forty
50 = fifty
60 = sixty
70 = seventy
80 = eighty
90 = ninety
The nearest number whose square ≤ 10000 is 100. Then the greatest odd number less that 100 is 99 so there are 50 odd numbers in the range 1- 99 inclusive whose squares are less than 10000.
To find a fraction between any two numbers, multiply the two numbers and divide by two. This way we can find unlimited numbers / fractions between any two fractions/numbers. The other way to find fractions between any two fractions is to divide and multiply both the numbers by 100, or 1000, and make the denominators same. Then the numbers between the two numerators gives all the numbers/fractions between those two numbers. For example, to find 100 fractions between 1 and 2, multiply and divide 1 and 2 by 100. This gives 100/100 and 200/100. Now the in between fractions are 101/100, 102/100, 103/100 upto 199/100. To find more, either multiply by 1000 instead of 100 to get 999 fractions. Or use any two numbers above and repeat the same process. To find fractions between 1.2 and 1.205, multiply and divide both numbers by 10000 This gives 12000/10000, 12050/10000. So the in between fractions are 12001/10000, 12002/10000 and so on till 12049/10000. Convert them to decimal.
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English
one
Prime numbers are infinite.
It is 100^2=10000
Prime numbers go on forever.
The nearest number whose square ≤ 10000 is 100. Then the greatest odd number less that 100 is 99 so there are 50 odd numbers in the range 1- 99 inclusive whose squares are less than 10000.
10001
100 x 100= = 10000
The sum of the first 100 odd numbers (1 through 199) is 10000 (ten thou)
To find a fraction between any two numbers, multiply the two numbers and divide by two. This way we can find unlimited numbers / fractions between any two fractions/numbers. The other way to find fractions between any two fractions is to divide and multiply both the numbers by 100, or 1000, and make the denominators same. Then the numbers between the two numerators gives all the numbers/fractions between those two numbers. For example, to find 100 fractions between 1 and 2, multiply and divide 1 and 2 by 100. This gives 100/100 and 200/100. Now the in between fractions are 101/100, 102/100, 103/100 upto 199/100. To find more, either multiply by 1000 instead of 100 to get 999 fractions. Or use any two numbers above and repeat the same process. To find fractions between 1.2 and 1.205, multiply and divide both numbers by 10000 This gives 12000/10000, 12050/10000. So the in between fractions are 12001/10000, 12002/10000 and so on till 12049/10000. Convert them to decimal.
English
one
12
There are 100 palindromes between 10,000 and 20,000.