Asmo đề thi thử amo số 2 lớp 3 2020

Please DO NOT OPEN the contest booklet until the Proctor has given permission.. Write your answers neatly in the answer sheet in the booklet.. Students must show detailed working and pu

ĐỀ THI THỬ AMO SỐ 2 AMO OFFICIAL TEST 2017 – GRADE 3

ĐỀ THI CHÍNH THỨC AMO NĂM 2017 - LỚP 3 INSTRUCTION

CHỈ DẪN

1 Please DO NOT OPEN the contest booklet until the Proctor has given

permission

2 TIME: 1 hour 30 minutes

3 Attempt all 25 questions Each question scores 1 point No points are deducted

for incorrect answers

4 Write your answers neatly in the answer sheet in the booklet

5 PROCTORING: No one may help any student in any way during the contest

6 No calculators are allowed

7 All students must fill in your Name, Class and School

8 MINIMUM TIME: Students must stay in the exam hall at least 1h 15 min

9 Students must show detailed working and put answers in the answer sheet

10 No spare papers can be used in writing this contest Enough space is provided

for your working of each question

Question 1 What is the value of 20 + 19 + 18 +17 + 16 - 15 - 14 - 13- 12-11? Question 2 What is the value of (70 x 4) - (80 x 3) + (60 x 5)?

Question 3 The sum of the digits of the number 216 is 9 What is the least

number greater than 216 whose sum of the digits is 9?

Question 4 Find the value of 98-87 + 76 -65 +54- 43 +32 - 21 + 10

Question 5 Sandy multiplies 2 x 5 x 7 x 2 x 5 x 7 x 2x5 and writes the product

as a whole number What is the sum of the digits of this number?

Question 6 The first row has 2 dots:

The second row has 4 dots:

The third row has 6 dots:

More rows are added Each additional row has 2 more dots than the row before

it How many dots will there be in the first 10 rows combined?

Question 7 Dillon works at the park every third day William works at the park

every sixth day Francis works at the park every eighth day They all worked together on Thursday The park is open every day On what day of the week will they all next work together? (If your answer is Monday, write 001; if it is Tuesday, write 002; and so on)

Question 8 Summer vacation lasts for 55 days During summer vacation, what

is the greatest number of Fridays that could occur?

Question 9 What is the greatest multiple of 25 that has exactly 3 digits?

Question 10 Jake is John's father The sum of their ages is 44 In 14 years Jake

will be twice as old as John How old will John be in 14 years?

Question 11 At Springfield Elementary School, a shelf contains either 4 math

books or 9 spelling books On 15 shelves at Springfield Elementary, there are 72 spelling books and some number of math books All 15 shelves ảe full How many math books ảe thể on the shelves?

Question 12 The cost of 3 pencils and 2 markers is $13 The cost of 2 pencils

and 3 markers is S12 What is the total cost of 7 pencils and 7 markers?

Question 13 A certain book has its pages numbered from 1 to 50 Then any page

number that contains the digit 3 is entirely erased What is the sum of all of the numbers that were erased?

Câu 14 Given:

What is the value of O?

Câu 15 The cube at the right is constructed of same sixed figures as shown How

many figures does the cube contain?