Fifth Grade Challenging Math

531) 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?
532) Evaluate the sequence of the following fractions. What should the next fraction be?
533) 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?
534) Find the sequence and fill in the blanks a) 48, 47, 45, __, 38, __, __, 20, __ b) 3, 50, 5, 40, 7, 30, __, __, 11
535) Trapezoid ABCD's dimensions are shown in the drawing. Calculate the area of the trapezoid.
More challenging math problems for fifth grade: 15
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1115
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2125
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3135
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4145
4650
5160
6170 7180
