instruction:
You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
question:
A spaceship traveled 0.5 light - year from Earth to Planet X and 0.1 light - year from Planet X to Planet Y . Then it traveled 0.1 light - year from Planet Y back to Earth . How many light - years did the spaceship travel in all ?
answer:
0.7


question:
An oil pipe in the sea broke . Before engineers started to fix the pipe , 6522 liters of oil leaked into the water . While the engineers worked , the pipe leaked 5165 more liters of oil . In all , how many liters of oil leaked into the water ?
answer:
11687


question:
Sally had 27 Pokemon cards . Dan gave her 41 new Pokemon cards . Sally bought 20 Pokemon cards . How many Pokemon cards does Sally have now ?
answer:

88