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Tài liệu ôn thi toán AMO lớp 2, 3 năm 2019 | Kỳ thi toán AMO 2019

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On Saturday, I spent 75 minutes on my science project and 40 minutes on my English homework.. On Sunday morning, I spent a total of 100 minutes on my homeworkT[r]

(1)(2)(3)(4)(5)(6)

For more information, click on

(7)(8)(9)(10)(11)(12)(13)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

TRAINING COURSE FOR AMO 2019

PREPARE FOR AMO 2019 - GRADE 3

Week

Introduction:This problem set is to help students get used to the problems appearing in AMO Students should finish this set in 30 minutes

The space after each question is intentionally left blank for students to draft In the real test, students not have any drafts out of the blank spaces in the test paper

For more information, visit our official pages: https://www.facebook.com/amovietnam2018/ or https://www facebook.com/giaoductienphong/

Exercise 1. Jenny takes a short nap after school As she falls asleep the clock reads 3:03 p.m She wakes up at 4:25 p.m How many minutes does Jenny take a nap?

(14)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

Exercise 2. Read the clues to find the secret number

3

6

2

4

1

It is in both the rectangle and the circle It is not in the triangle It is greater than What number is it?

Exercise 3. Linda used 1m 40cm of red ribbon and 4m 38cm of blue ribbon to make a flower How much ribbon did she use in all, in centimeters?

(15)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

Exercise 4. Jack has a lot of homework to He starts his reading homework at 3:40 and ends at 4:30 Then he does math from 4:30 until 5:00 Lastly, he studies for a science test from 5:00 -5:30 How many minutes did Jack spend on his homework and studying?

Exercise 5. Suppose you are visiting an island with knights, who always tell the truth, and knaves, who always lie

You ask an islander a question Which question has a guaranteed answer of "no"? A."Are you a knave?"

B."Are you a knight?"

C."Does + = 3?"

D."Does + = 2?"

In your answer sheet, write 001 for A, 002 for B, 003 for C and 004 for D

(16)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

Exercise 6. John has a 24 centimeters long piece of wood He wants to cut it into equal lengths How long should each piece be in millimeters?

Exercise 7. On Saturday, I spent 75 minutes on my science project and 40 minutes on my English homework On Sunday morning, I spent a total of 100 minutes on my homework What is the difference between the amount of homework I did on Saturday and Sunday morning, in seconds?

(17)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

Exercise 8. Sylvia has balls of yarn Each ball has m 65 cm of yarn She uses three balls of yarn for a craft project How many centimetres of yarn has she left?

Exercise 9. A lion and a unicorn in a forest of forgetfulness are strange beings:

The lion lies on Monday, Tuesday and Wednesday and tells the truth on the other days The unicorn lies on Thursdays, Fridays and Saturdays and tells the truth on the other days One day, they talked to each other

Lion:”Yesterday I was lying.”

Unicorn:”So was I.”

On which day did they say that?

In your answer sheet, write 001 for Sunday, 002 for Monday, 003 for Tuesday, 004 for Wednesday, 005 for Thursday, 006 for Friday, 007 for Saturday

(18)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

ANSWER KEY

Exercise 1. 82 Exercise 2. Exercise 3. 578

Exercise 4. 110 Exercise 5. 001 Exercise 6. 80

Exercise 7. 900 Exercise 8. 330 Exercise 9. 005

(19)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

TRAINING COURSE FOR AMO 2019

PREPARE FOR AMO 2019 - GRADE 3

Week

Introduction:This problem set is to help students get used to the problems appearing in AMO Students should finish this set in 30 minutes

The space after each question is intentionally left blank for students to draft In the real test, students not have any drafts out of the blank spaces in the test paper

For more information, visit our official pages: https://www.facebook.com/amovietnam2018/ or https://www facebook.com/giaoductienphong/

Exercise 1. A box of milk costs $2.90 and a package of bacon costs $3.10 How many cents does it cost to buy boxes of milk and package of bacon?

(20)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

Exercise 2. Jenny bought a jacket for $73.50, a shirt for $26.50 and pens costing $9 each How many dollars did she spend?

Exercise 3. If Sue has $30.3 to spend on presents and she buys a teddy bear for $2.40, a dress for $7.6, and a gift card for $15.3 How many pennies does she have left over?

(21)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

Exercise 4. Marian baked bread, cookies and pastries one Saturday at home for her family and friends this holiday season She made 47 gingerbread cookies which she will distribute equally in tiny glass jars If each jar contained exactly six cookies, how many cookies would not be placed in a jar?

Exercise 5. 45 sweets are given to Albert, Ben, Charles and Dennis in this manner: Albert Ben Charles Dennis

4

8

Who will get the last sweet?

In your answer sheet, write 001 for Albert, 002 for Ben, 003 for Charles and 004 for Dennis

(22)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

Exercise 6. How many three-digit counting numbers whose digits are 9, 2, and are there?

Exercise 7. The Johnson family is planning a summer vacation They are trying to decide whether to travel by plane, train or car They will go to Florida, California or Mexico They can stay in a hotel or with friends What are all the different trips that the Smiths could plan?

(23)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

Exercise 8. What is the sum of the first 33 numbers in the sequence below? 2,0,1,9,2,0,1,9,2,0,1,9,

Exercise 9. A string of numbers is arranged in the following pattern:

2,4,6,3,5,7,2,4,6,3,5,7,

What is the digit of the28th number?

(24)

Instructors:

Dr T

ran

Nam

Dung,

Dr L

e Minh

Tuan

ANSWER KEY

Exercise 1. 890 Exercise 2. 136 Exercise 3. 500

Exercise 4. Exercise 5. 004 Exercise 6.

Exercise 7. 18 Exercise 8. 98 Exercise 9.

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