Tuyển tập đề thi toán học sáng tạo cho học sinh lớp 6 - 8

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Warm-Up 1
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[TD]1 .cm [/TD]
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What is the length, to the nearest centimeter, of the hypotenuse of the right triangle shown?

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[TD]2 .cm[/TD]
[TD]If the ratio of the length of a rectangle to its width is 9/4 and its length is 18 cm, what is the width of the rectangle?[/TD]
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[TD]3 .bins[/TD]
[TD]Mike bought  pounds of rice. He wants to distribute it among bins that each hold 1/3 pound of rice. How many bins can he completely fill?[/TD]
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[TD]4 .p.m[/TD]
[TD]It took Jessie 15 minutes to drive to the movie theater from home. He waited 10 minutes for the movie to start, and the movie lasted 1 hour 43 minutes. After the movie ended, Jessie immediately went home. It took Jessie 25 minutes to drive home from the theater. If he left for the movie at 4:05 p.m., at what time did he get home?[/TD]
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[TD]5 .$[/TD]
[TD]A carnival pass costs $15 and is good for 10 rides. This is a savings of $2.50 compared to paying the individual price for 10 rides. What is the individual price of a ride without the pass?[/TD]
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[TD]6 [/TD]
[TD]If x + y = 7 and x ư y = 1, what is the value of the product x∙y?[/TD]
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[TD]7 [/TD]
[TD]Mrs. Stephens has a bag of candy. The ratio of peppermints to chocolates is 5:3, and the ratio of peppermints to gummies is 3:4. What is the ratio of chocolates to gummies? Express your answer as a common fraction.[/TD]
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[TD]8 .degrees[/TD]
[TD]The angles of a triangle form an arithmetic progression, and the smallest angle is 42 degrees. What is the degree measure of the largest angle of the triangle?[/TD]
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[TD]9 .[/TD]
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Each of the books on Farah’s shelves is classified as sci-fi, mystery or historical fiction. The probability that a book randomly selected from her shelves is sci-fi equals 0.55. The probability that a randomly selected book is mystery equals 0.4. What is the probability that a book selected at random from Farah’s shelves is historical fiction? Express you answer as a decimal to the nearest hundredth.

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[TD]10 [/TD]
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According to the graph shown, which of the other eleven months has a number of daylight hours most nearly equal to the number of daylight hours in April?

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