Question

To find the number of centimeters in 10 inches, multiply the number of inches given (10) by _____.

Answer 1

What you must do for this case is to know the conversion of inches to centimeters:
 1 inch = 2.54 centimeters
 We can make the following rule of three:
 1 ---> 2.54
 10 ----> x
 Clearing x:
 x = (10/1) * (2.54)
 x = 25.4 cm
 Answer: 
 multiply the number of inches given by 
 2.54

Answer 2

We have that 1 in----- 2.54 cm
                      10 in--------X
x=10*2.54=25.4 cms

the answer is 2.54 cms