Đề thi Olympic Tiếng Anh lớp 5 vòng 15 năm 2013 - 2014

Mr. Lee drew a layout of his garden using the model above. The scale is 1 centimeter to 5 meters. The deck is 0.45 centimeters from the pool on the layout. What is the actual distance between the deck and the pool?

Marina needs to fit as many small rectangles into the large rectangle as possible. How many can she fit?

Simon is playing a shape identification game. What kind of triangle is the one pictured above?

The base ten numeration system that we use has ten digits. What is the product of those ten digits?

97, 95, ?, 91, 89

Missy went to a party at the Miller Outdoor Theater. She recorded the number of people left at the party after each hour using the list above. How many people were left after the third hour?

The average person blinks about 15,000 times a day. The average blink lasts about one-tenth of a second. How many seconds of one day does the average person spend blinking? Sleeping does not count!

Tom wants to make a cage for his new hermit crab using the dimensions above. What will be the area of the cage?

1. Grouping the marbles by fours leaves 2 extra marbles.

2. Grouping by fives leaves 1 extra.

3. There are more than 10 marbles in the collection.

Mary has a marble collection. She will not tell anyone the number of marbles that she has in her collection. The only way to figure out the number is to use the clues above. What is the smallest number of marbles needed to satisfy Mary's conditions?

Greg drank 6.24 liters of water today. How many milliliters of water did he drink?

Farmer Johnson wants to make a new pen for his chickens based on the model above. What will be the perimeter of the new chicken pen?