10
Starting from 1111 couning upwards to 9999 there would be 8888 different combinations.
4!=4x3x2x1=24
7
45
shut up guys
10
how many combinations of 4 numbers are there in 7 numbers
1 + 3 + 5 + 71 there are many combinations
You can get only four combinations: They are: 11, 118, 119 and 1189. In a combination, the order of the digits does not matter.
How many place combinations in a four digit number and all have to go in different spot example: 1234, 4321, 2134 etc. numbers can't change and have to stay four numbers?The answer would be 36 different combinations. This is simply the counting principle and it's easy for anyone to learn.
4 x 4 x 4 = 64 :)
There are: 9C6 = 84 combinations
they are 21C2 combinations