How many 3-digit numbers can be created using the numbers 7, 8, 9, 10?
1 Answer
Jan 22, 2018
See a solution process below:
Explanation:
first, using the number 10, because it is 2 digits, we can only use the 1 of the other digits either before or after the 10.
So this would give us:
710; 810; 910; 107; 108; 109
Then we can combine the 3 single digit numbers in:
#789; 798; 879; 897; 978; 987
Therefore there are a total of 12 three digit numbers you can create.