Body: There were 21 roses in the vase. Jessica threw away 34 roses from the vase and cut some more new roses from her flower garden to put in the vase. There are now 15 roses in the vase.
Question: How many more roses did she throw away than those she cut from her garden?
question_concat: There were 21 roses in the vase. Jessica threw away 34 roses from the vase and cut some more new roses from her flower garden to put in the vase. There are now 15 roses in the vase. How many more roses did she throw away than those she cut from her garden?