Solve the following word problems:
(1) What is added to 74.53 to get 91?
Solution: 91.00 – 74.53 = 16.47.
(2) What is to be subtracted from 7.3 to get 1.862?
Solution: 7.300 – 1.862 = 5.438.
(3) By how much should 23.754 be increased to get 50?
Solution: 50.000 – 23.754 = 26.246.
(4) By how much should 84.5 be decreased to get 27.84?
Solution: 84.50 – 27.84 = 56.66.