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 farmer had 225 seeds to plant . he planted the same number of seeds each day and it took him 5 days to plant them all . how many seeds did he plant per day ?
[A]: 45


[Q]: we ordered 21 pizzas . each pizza has 8 slices . how many slices of pizza are there altogether ?
[A]: 168


[Q]: he also had 8 aquariums for saltwater animals . each aquarium has 64 animals in it . how many saltwater animals does tyler have ?
[A]:
512