90. all the numbers from 10 through 99
-99
If you mean, "What is the largest number of digits possible in the product of two 2-digit numbers" then 99 * 99 = 9801, or 4 digits. Anything down to 59 * 17 = 1003 will have 4 digits.
There are 900 three digit numbers between 99 and 3,000 - ranging from 100 to 999
-99
90. all the numbers from 10 through 99
All the numbers from 10 to 99 are positive 2 digit integers
-99
1 to 9 have 1 digit and 10 to 99 have 2 digits so (9 x 1) + (90 x 2) = 189
They are: 99 and 90
501
Numbers above 99 and under 1000 are 3-digits, all 900 of them.
It can have 4 digits, because the highest possible two digit numbers 99*99=9801.
109
It can have one . . . 1.0 x 1.0 = 1 It can have two . . . 1.0 x 0.1 = 0.1 It can have three . . . 10 x 10 = 100 It can have four . . . 99 x 99 = 9801 and .01 x .01 = .0001
If you mean, "What is the largest number of digits possible in the product of two 2-digit numbers" then 99 * 99 = 9801, or 4 digits. Anything down to 59 * 17 = 1003 will have 4 digits.
10001