There are many ways you can use those numbers to form the values from one to ten. Here's one example of each:
10+2+1
4+1=5... 5x2=10... 10+3=13 !
Use any three numbers whose sum is 10.For example, 1/10 + 2/10 + 7/10 = 10/10 = 1 or 3/10 - 9/10 + 2/10 = 10/10 = 1
9*9*9 = 729 using the digits 1 to 9 and 2*9 using 10 and another digit. 749 in all.
1 + 2 + 3 + 4 + 5 + 6 + 7 + 2 + 3 + 4 = 37 note: there are many other variations/answers
10+2+1
(75*10)-(100/5)-(22 )-(2*1)
4+1=5... 5x2=10... 10+3=13 !
2
Use any three numbers whose sum is 10.For example, 1/10 + 2/10 + 7/10 = 10/10 = 1 or 3/10 - 9/10 + 2/10 = 10/10 = 1
Their is 25 combinations
16.53 = (1 x 10^1) + (6 x 10^0) + (5/10^1) + (3/10^2)
1/2, 3/6, 4/8
The prime numbers from 1 to 10 are: 2, 3, 5, 7
The number of combinations of 7 numbers from 10 is 10C7 = 10*9*8/(3*2*1) = 120
9*9*9 = 729 using the digits 1 to 9 and 2*9 using 10 and another digit. 749 in all.
1 + 2 + 3 + 4 + 5 + 6 + 7 + 2 + 3 + 4 = 37 note: there are many other variations/answers