Could the answer be 99.9? Or A better answer would be: 9x9+9+(9÷9) Let's look at this in parts. 9x9=81 | 81+9=90 | 90+9=99 | 9÷9=1 | 99+1=100 | :)
Chat with our AI personalities
31 = 3 + 33 + (3/3).
There are 5 choices for the first digit, as any of the 5 given digits can be used. After selecting the first digit, there are 4 remaining choices for the second digit, and 3 choices for the third digit. Therefore, the total number of ways to write a 3-digit positive integer using the given digits without repetition is 5 x 4 x 3 = 60 ways.
468, 486, 648, 684, 846, 864.
Oh, dude, I mean, like, there are 4 digits in 1230, right? So you can totally make 4-digit numbers by using each of those digits once. That's like, 4 factorial, which is 24. So, you can totally write 24 different four-digit numbers using 1230 without repeating any digit. Easy peasy!
24 = 4*3*2*1 of them