Trên cơ sở đề thi cấp huyện, tỉnh, quốc gia năm học 2015 - 2016, mình bổ sung thêm lời giải nhằm giúp cho các bé có tài liệu ôn thi, thêm tự tin khi bước vào vòng thi cấp huyện, tỉnh và quốc gia.

Các bạn có thể tải toàn bộ Đề và đáp án ôn thi vòng huyện Toán tiếng Anh (Math ViOlympic) lớp 3 năm học 2016 - 2017 tại đây.

Exam 1: Sắp xếp

14:7=2	20-17=3	12:3=4	12-7=5
21:3=7	4x2=8	3x2+3=9	4x2+2=10
3x3+2=11	Twelve=12	4x5-7=13	4x3+2=14
6x6-21=15	1x10+6=16	2x3x3=18	5x7-10=25
The value of x such that x+27=54 (=27)	20x3:2=30	1/3 của 120	The smallest 3 - digit number = 100
Sum of 99 and 2	One hundred and three=103	Result of 7x7+55=104	The number between 105 and 107=106
The value of x such that x+12=120 (=108)	The difference between 130 and 21=109	400:4+10=110	Sum of 36, 37 and 38=111

Exam 2: Fill in the blank with the suitable number

Question 7:
24 cups are equally distributed into 6 boxes.How many cups are there in each box?
Answer: There are 4 cups in each box.

Giải:

Question 9:
A girl had 12 candies.She gave her sister 1/3 of the number of the candies.How many candies did she give her sister?
Answer: She gave her sister 4 candies.

Giải:

Question 9:
Binh and Hoa collected 335 stamps.Binh collected 128 stamps.How many stamps did Hoa collected?
Answer: Hoa collected 207 stamps.

Giải:

Question 3:
Calculate: 3×7+80
Answer: 101

Question 2:
Calculate: 99 – 42
Answer: 57

Question 4:
Calculate: 123+456
Answer: 579

Question 6:
Each box has 12 color pencils.How many pencils are in 3 of these boxes?
Answer: There are 36 pencils.

Giải:

Question 6:
Find x such that 6×7 =x-13
Answer: x = 55

Giải:

Question 2:
Find x such that 45-x=11
Answer: 34

Giải:

Question 7:
Find x such that x∶2 =3×4
Answer: x = 24

Giá trị của x là: x = 3 x 4 x 2 = 24

Question 7:
Find x such that x+15=7×6
Answer: x = 27

Giải:

Question 3:
Find x such that x+34=99
Answer: 65

Giải:

Question 10:
How many dogs are there?

Answer: There are 22 dogs.

Giải:

Question 9:
How many rectangles are there?

Giải:

Question 8:
How many triangles are there?

Answer: There are 5 triangles.

Giải:

Question 9:
Mother had 40 bananas.After selling,the number of bananasis 4 times smaller.How many bananas are sold?
Answer: There are 10 bananas sold.

Giải:

Question 10:
Peter leaves home at 6:30 and arrives at school at 7:00.How long does it take Peter to get to school?
Answer: It takes Peter 30 minutes to get to school.

Giải:

Question 9:
Segment AB is 2cm long.Segment CD is 3 times longer than AB.How long is segment CD in cm?
Answer: Segment CD is 6 cm long.

Giải:

Question 1:
Sum of 3,7 and 12
Answer: 22

Giải:

Question 1:
Sum of 37 and 42
Answer: 79

Giải:

Question 8:
Two apples weight 100 gram.Then ten apples weight ….gram.
Answer: Ten apples weight 500 gram.

Giải:

Question 10:
Wendy is 27 years old.Vicky is 3 years younger thanMika and 1 year older than Wendy.How old is Mika?
Answer: Mika is 31 years old.

Giải:

Question 1:
Write in numbers “One hundred and one”
Answer: 101

Question 1:
Write in numbers “Nine hundred and twenty – two”
Answer: 922

Question 5:
Write the missing number in the blank

Answer: The missing number is 44.

Giải:

Question 7:
Write the missing number in the blank

Answer: The missing number is 115.

Giải:

Question 2:
Write the missing number in the blank

Answer: The missing number is 108.

Giải:

Exam 3: Vượt chướng ngại vật

Arrange these numbers from greatest to least, which number will come fourth? Answer: 82

Giải:

Fill the blank with a suitable letter… Answer: J

Giải:

Fill the missing time? Answer: 7:15

Giải:

Fill the value x? Answer: 6

Giải:

How do you write the number using digits? “eighty - two” Answer: 82


How do you write this number using words? “97”. Answer: Ninety - seven


How many circles are there? Answer: 4


How many even number are there? 12 13 14 15 16 17 18. Answer: 4

Giải:

In which piture, the clock shows ten past four? Answer: Picture 1

Giải:

Jenna bought a box with both chocolate and maple donuts. There were 2 fewer maple donuts than chocolate donuts, and there were 14 donuts in all. How many chocolate donuts did Jenna buy? Answer: 8

Giải:

Mai filled 6 plates with cakes. She put 2 cakes on each plates. How many cakes did Mai use? Answer: 12

Giải:

The line is about … inches long? Answer: 3

Giải:

The times shown is 4:30. In how many minutes, the time shown is 6:00. Answer: 90

Giải:

What is the perimeter? Answer: 29cm

Giải:

What is the perimeter? Answer: 38cm

Giải:

What time will it be in 30 minutes? Answer: 2:20


Which number makes the equation true? Answer: 161

Giải:

Which odd number comes next? 57 59 61 … Answer: 63

Giải:

Which set of number is in order from greatest to least? Answer: Set 2