Christopher has 20 coins, and Sherlyn gives 10 coins to Christopher. After sometime Sherlyn takes back her 10 coins. How many coins are remaining with Christopher?
a. 10
b. 20
c. 35
d. 22
e. 30
Question 2
John has 9 trading cards, and Bob has 17 trading cards. Use additive reasoning to write two sentences that compare the number of trading cards John and Bob have.
a. John has 8 fewer trading cards than Bob. Bob has 8 more cards than John.
b. John has 8 more trading cards than Bob. Bob has 8 fewer cards than John.
c. John has 4 fewer trading cards than Bob. Bob has 4 more cards than John.
d. John has 15 fewer trading cards than Bob. Bob has 15 more cards than John.
e. John has 8 fewer trading cards than Bob. Bob has 8 more cards than John.
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