Last year the chess club had 20 members. This year the club has 15 members. Find the percentage of change and state whether the
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The Dolphins football team gained 16 yards on their first play, then lost 11 yards on the next play. Write an addition expression to represent this situation. Find the sum and explain its meaning.
Answer: On the first play, Dolphin's football team gained 16 yards.
On the 2nd play, Dolphin's football team lost 11 yards.
Therefore, the addition expression to represent this situation is:
The sum of this expression is:
Therefore, we can interpret it as: Dolphin's football team gained 5 yards over the 2 plays