To change 10 pounds into Newton's, we can think about this as multiplying by 1. So I want to put 1 pound here in the denominator where my pounds will cancel. And 4.4482 Newton's in the numerator. This will give me 44.482 Newton's. Or if you want to put that in three significant digits, 10 pounds equals 44.5 Newton's. This method keeps you from trying to make a mistake about whether you put the 4.4482 in the numerator or the denominator.