0
Leaving out equivalent permutations, around 50:
1+2+9
1+3+8
1+4+7
1+5+6
2+2+8
2+3+7
2+4+6
2+5+5
3+3+6
3+4+5
4+4+4
1*2*6
1*3*4
2*2*3
4+9-1
5+9-2
5+8-1
6+9-3
6+8-2
6+7-1
7+9-4
7+8-3
7+7-2
8+9-5
8+8-4
9+9-6
21*6
22*3
2*61
3*41
31*4
0!*3!*2
0!*4!/2
1!*3!*2
1!*4!/2
0!*3!*2!
0!*4!/2!
1!*3!*2!
1!*4!/2!
3!*2/0!
3!*2/1!
3!*2!/0!
3!*2!/1!
4!/(2!*1)
4!/(2!*1!)
4!/(2!*0!)
5!/(5*2)
5!/(5*2!)
What else can I help you with?
How many times digit 1 is used to make all 2 digit numbers?
19 times10,11 (is 2),12,13,14,15,16,17,18,19,21,31,41,51,61,71,81 and 91
How many 3 digit numbers can you make using only 1 and 2 using it as many times as you want?
8 of them.
How many 1 digit numbers can make with 123 digits?
With 123 digits you can make 123 one-digit numbers.
How many times does the digit 1 occur in ten place in the numbers from 1 to 1000?
How many times does the digit 1 occur in ten place in the numbers from 1 to 1000?
How many 6 digit numbers can be formed that contains no zeros two times the digit 1 two times the digit 2?
16000
How many different 5 digit numbers can you make with the numbers 2 3 4 5 6?
about... 25 just take 5 numbers times 5 numbers
How many 4 digit numbers can you make with 3358?
12 numbers
How many five-digit numbers can you make with 0 1 2?
Not sure what a "didget" is. It is possible to make 18 5-digit numbers.
How many times does the digit 9 appear in the numbers from 1 to 100?
11 times
How many times does four appear in 100?
As a digit in other numbers it appears 20 times
How many outcomes of three digit numbers can you make with 5 different numbers?
8
If you write down all the numbers from 1 to 100 how many times will you write the digit 3?
The digit 3 will be written 20 times.
