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5-31)   A book store carries 41 Ocean calendars and 48 Space calendars. Everyday, the store sells 3 Ocean calendars and 4 Space calendars. After how many days there are same number of both calendars left in the store?

5-32)  Evaluate the sequence of the following fractions. What should the next fraction be?

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5-33)  Maria gets up in the morning and checks her watch against the TV, and sets the time to 7:00 am. School is over at 3:00 pm. But when Maria checked her watch right after school, it showed 2:20 pm. If Maria's watch slows down same amount of the time each hour, how many minutes does her watch slow down each hour?

5-34)  Find the sequence and fill in the blanks

a)   48, 47, 45, __, 38, __, __, 20, __

b)   3, 50, 5, 40, 7, 30, __, __, 11

5-35)  Trapezoid ABCD's dimensions are shown in the drawing. Calculate the area of the trapezoid.

More challenging math problems for fifth grade:
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