Answers:
a) 17 * 10 = 170
b) 24 * 100 = 2400
c) 6 * 1000 = 6000
Here, since the 2nd number is 10^n, where n is any natural number, we simply add the number of zeroes in the second number. For example 2 * 10 will be 20 because we add the 0 to the end from 10, and there is only one zero in 10.