You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[Q]: A teacher had 6 worksheets to grade . If she graded 4 , but then another 18 were turned in , how many worksheets would she have to grade ?
[A]: 20


[Q]: In fourth grade there were 4 students at the start of the year . During the year 3 students left and 42 new students came to school . How many students were in fourth grade at the end ?
[A]: 43


[Q]: April 's discount flowers was having a sale where each flower was 3 dollars . If Robin bought 5 roses and 4 daisies , how much did she spend ?
[A]:
27