There are no didgits. None! They do not exist!
There are ten digits 0, 1, ... 9 which represent the first ten numbers. Beyond that, numbers are represented using the same ten digits but this is done using the idea of place values.
The first 100 odd whole numbers are: 13579111315171921232527293133353739414345474951535557596163656769717375777981838587899193959799101103105107109111113115117119121123125127129131133135137139141143145147149151153155157159161163165167169171173175177179181183185187189191193195197199.
3.141592653589793238462643383279502884197169399375105820974944592307816406286
3.14
The sum of the first 100 odd numbers is 10,000.
The sum of the first 100 odd numbers (1 through 199) is 10000 (ten thou)
This is very easy. Simply square the number: 100 squared (100 x 100) = 10,000. So, the sum of the first 100 odd numbers is 10,000.
The sum of the first 10 odd whole numbers is 100.
100
100
It is 100^2=10000
199 The first odd number is 1 The second odd number is 3 The rth odd number is thus 2r - 1 Thus the 100th odd number is 2 x 100 - 1 = 199.
Oh honey, the sum of the first 100 odd numbers is 10,000. You see, the formula for the sum of the first n odd numbers is n^2, and since 100 is the 50th odd number, 50^2 equals 10,000. So, there you have it, darling.