Đề thi olympic tiếng anh lớp 5 năm học 2012 vòng 17 đề thi số 3

A fraction of the circle above is shaded.. Which of the following models is shaded to represent a decimal with the same value as the circle fraction?. A piece of wood is 2.27 centimeter

ĐỀ THI OLYMPIC TIẾNG ANH LỚP 5 NĂM HỌC 2012

VÒNG 17 - ĐỀ THI SỐ 3

Chọn câu trả lời tốt nhất cho những câu hỏi dưới đây.

1 A fraction of the circle above is shaded Which of the following models is shaded

to represent a decimal with the same value as the circle fraction?

A

B

C

D

2 A piece of wood is 2.27 centimeters thick What is that measurement rounded to the nearest tenth of a centimeter?

A 2.1

B 2.2

C 2.3

D 2.5

3 The table shows the number of visitors recorded one year to some national parks Which of the following is a true statement about the number of visitors to these parks?

A 1,836,784 < 1,784,520

B 1,473,100 < 1,317,835

C 1,317,835 < 1,784,520

D 1,836,784 < 1,473,100

4 Which means “six and seventy-four thousandths”?

A 674,000

B 6.74

C 6.074

D 0.6074

5 Rachel bought a pizza that was cut into 8 equal slices Rachel and her friends ate 50% of the pizza Later, they ate another 1/4 of the whole pizza What percentage of the whole pizza was still left?

A 10%

B 25%

C 50%

6 A farmer needs to build the pen shown above for his animals The width of the pen is half of its length What is the perimeter of the pen?

A 50 feet

B 60 feet

C 65 feet

D 70 feet

7 Which of the following number comparisons is true?

A 1.3749 < 1.0399

B 1.526 < 1.2605

C 1.7908 < 1.879

D 1.463 < 1.3902

8 Which of the following products would be in the 200 to 300 range?

A 9 x16

B 15 x 12

C 17 x 11

D 19 x 13

4.8 x 5.1 = ?

9 What is the product of the two numbers above?

A 2.44

B 2.88

C 24.41

D 24.48

10 What is the sum of the two numbers above?

A 2 / 3

B 1

C 1 1 / 8

D 1 1 / 4