Q: Cheryl placed 300 strawberries into 5 buckets. After she did that she decided to take 20 out of each bucket so they wouldn't get smashed. How many strawberries were left in each bucket?
A: Every bucket originally had 300 / 5 = 60 strawberries. After she removed 20 strawberries there were 60 - 20 = 40 strawberries in each bucket. The answer is 40.

Q: Dave bought 3 packs of white T-shirts and 2 packs of blue T-shirts for his basketball team. The white T-shirts come in packs of 6, and the blue T-shirts come in packs of 4. How many T-shirts did Dave buy in all?
A: Dave bought 3 packs of white shirts * 6 = 18 white shirts. Dave bought 2 packs of blue shirts * 4 = 8 blue shirts. Dave bought a total of 18 + 8 shirts = 26 shirts. The answer is 26.

Q: Kate bought 7 packs of red bouncy balls and 6 packs of yellow bouncy balls. Each pack contained 18 bouncy balls. How many more red bouncy balls than yellow bouncy balls did Kate buy?
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Kate bought 7 packs × 18 balls / pack = 126 red bouncy balls. She also bought 6 packs × 18 balls / pack = 108 yellow bouncy balls. Kate bought 126 balls - 108 balls = 18 more red bouncy balls than yellow bouncy balls. The answer is 18.