instruction:
You are given a math word problem and you are supposed to apply a single mathematical operator 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.
question:
mike owned 64 baseball cards . for his birthday he got 18 more . how many cards does mike have total ?
answer:
82

question:
a washing machine can wash 28 pounds of clothes per day . if there are 200 pounds of clothes to be washed per day how many washing machines are needed ?
answer:
7.142857142857143

question:
miki bought 4 packs of red bouncy balls and 3 packs of yellow bouncy balls . each package contained 7 bouncy balls . how many more packs of red bouncy balls than yellow bouncy balls did miki buy ?
answer:
1