VTMO 2026 - Grade 4 - Semifinal - SET 2 - Self-study

Question 1

Việt has 15 sticks of length 3 cm and 10 sticks of length 2 cm. What is the smallest number of extra 1 cm sticks he needs to arrange all the sticks into the boundary of a rectangle with whole-number side lengths?

1. 0
2. 1
3. 2
4. 3
5. 4

Question 2

Bình writes the numbers from 1 to 999 on a sheet of paper. He dislikes round tens and round hundreds, so he skips them. How many numbers does he write?

1. 999
2. 990
3. 901
4. 900
5. 890

Question 3

The digit sum of 123 is $1+2+3=6$. How many three-digit numbers have digit sum 6?

1. 12
2. 16
3. 18
4. 20
5. 21

Question 4

Six teams enter a basketball tournament. Each team plays every other team twice. How many games are played in total?

1. 20
2. 18
3. 36
4. 15
5. 30

Question 5

The rectangle below is divided into six smaller squares. The largest square has area $16\text{ cm}^2$. What is the sum, in centimetres, of the perimeters of all six squares?

1. 24
2. 28
3. 32
4. 36
5. 40

Question 6

A group of pupils travels on buses, with the same number of pupils on each bus. Just before departure, one bus breaks down. Its pupils are shared equally among the remaining buses, adding 3 pupils to each. Each remaining bus now carries 27 pupils. How many pupils are in the group?

1. 216
2. 218
3. 224
4. 240
5. 254

Question 7

Which number below cannot be the remainder when a natural number is divided by 94?

1. 0
2. 9
3. 19
4. 93
5. 99

Question 8

Hải thinks of three different natural numbers. Each is a two-digit number and is divisible by 2, 3 and 5. What is the sum of these three numbers?

1. 50
2. 30
3. 90
4. 180
5. 210

Question 9

At the same moment, it is 11:00 in Việt Nam and 13:00 in South Korea on the same day. A flight from Hồ Chí Minh City to Seoul departs at 14:30 Việt Nam time and lasts 5 hours 10 minutes. What is the arrival time in South Korea?

1. 19:40
2. 20:40
3. 18:40
4. 21:40
5. 16:40

Question 10

Which calculation result is incorrect?

1. $1\times1\div1\times1=1$
2. $2\div2+2\div2=2$
3. $3\times3-3+3=3$
4. $(4-4)\div4+4=4$
5. $5+5\times(5-5)=5$

Question 11

For Nhi’s birthday party, her mother plans to share the candies equally among Nhi and 11 friends. If one friend does not come, each child receives 1 more candy. How many candies did her mother prepare?

1. 110
2. 120
3. 132
4. 121
5. 12

Question 12

The sum of 11 consecutive natural numbers is 352. What is the smallest of these numbers?

1. 27
2. 28
3. 29
4. 30
5. 26

Question 13

A 12 m steel pipe is cut into 4 m pieces, taking 8 minutes in total. How many minutes are needed to cut an 18 m steel pipe into 3 m pieces?

1. 16
2. 24
3. 20
4. 22
5. 18

Question 14

The passenger rows in an aeroplane are numbered from 1 to 25, but row 13 is omitted. Row 15 has only 4 seats; every other row has 6 seats. How many passenger seats are there altogether?

1. 120
2. 138
3. 142
4. 144
5. 150

Question 15

What day of the week is 60 days after a Sunday?

1. Wednesday
2. Tuesday
3. Monday
4. Thursday
5. Saturday

Question 16

The bar chart shows the numbers of perfect scores of 10 earned by classes 4A1, 4A2, 4A3, 4A4 and 4A5 in December. The horizontal grid lines are equally spaced. The five classes earned 102 scores of 10 altogether. How many did the class with the most scores of 10 earn?

1. 6
2. 24
3. 18
4. 36
5. 30

Question 17

7 January 2024 was a Sunday. What day of the week was 29 February 2024?

1. Monday
2. Tuesday
3. Wednesday
4. Thursday
5. Friday

Question 18

Shapes are placed on the two sides of each balance scale. Equal total weights make a scale balance. Using the three balanced scales below, which option lists the shapes from heaviest to lightest?

1. Circle, pentagon, square, triangle
2. Circle, pentagon, triangle, square
3. Pentagon, circle, square, triangle
4. Pentagon, circle, triangle, square
5. Triangle, square, circle, pentagon

Question 19

An drives 10 km east, then 5 km north, then 3 km east, then 11 km south, and finally 13 km west. How many kilometres is An from the starting point now?

Question 20

Hạnh rolls a four-sided (tetrahedral) die with faces numbered 1, 2, 3 and 4, and moves a playing piece as follows:
• An even result moves the piece forward by the number shown.
• An odd result moves it backward by the number shown.
She rolls 42 times and the piece travels 102 steps in total, counting both forward and backward steps. The number of 2s equals the number of 4s, and the number of 1s is twice the number of 3s. How many forward steps are taken altogether?