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:
Fred has 40 baseball cards . Keith bought 22 of Fred 's baseball cards . How many baseball cards does Fred have now ?
answer:
18


question:
Sara grew 4 onions , Sally grew 5 onions , and Fred grew 9 onions . How many onions did they grow in all ?
answer:
18


question:
There were 44 boys and 53 girls on the playground at recess . How many children were on the playground in all ?
answer:

97