Question 1
Swimming starts at 6 o'clock and ends at 10 o'clock. How many hours is that?
Swimming starts at 6 o'clock and ends at 10 o'clock. How many hours is that?
Swimming starts at 4 o'clock and ends at 10 o'clock. How many hours is that?
Swimming starts at 8 o'clock and ends at 10 o'clock. How many hours is that?
Five questions on this topic, marked at the end. No hints and no answers along the way — that is what makes the result mean something.
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