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VTMO 2026 - Grade 3 - Semifinal - SET 4 - Self-study

Question 1

The pictures show different views of the same die. Which letter is on the face opposite H?

Question illustration
  1. E
  2. S
  3. O
  4. P
  5. H

Question 2

Minh is lining up with his classmates for a trip. He is 6th from the front and 10th from the back. How many people are in the queue?

Question illustration
  1. 10
  2. 13
  3. 15
  4. 16
  5. 17

Question 3

Which two digits should be deleted from 385697 so that the remaining four-digit number is as large as possible? Keep the remaining digits in their original order.

Question illustration
  1. 3 and 8
  2. 3 and 5
  3. 5 and 6
  4. 3 and 6
  5. 3 and 7

Question 4

The difference of two numbers is 76. If 12 is added to the minuend while the subtrahend stays unchanged, what is the new difference?

Question illustration
  1. 12
  2. 64
  3. 67
  4. 76
  5. 88

Question 5

How many numbers have all their digits different and the product of their digits equal to 12? Examples include 34 and 216.

Question illustration
  1. 4
  2. 10
  3. 12
  4. 16
  5. 20

Question 6

Find the difference between the smallest three-digit number with distinct digits and the largest two-digit number.

Question illustration
  1. 24
  2. 13
  3. 11
  4. 3
  5. 1

Question 7

Minh takes three tests and scores an odd number on each test. Which of these could be the sum of his three scores?

Question illustration
  1. 18
  2. 19
  3. 20
  4. 22
  5. 30

Question 8

Using the ruler in the picture, how many centimetres longer is the pencil than the compass?

Question illustration
  1. 8
  2. 6
  3. 5
  4. 3
  5. 2

Question 9

Mother gives two brothers a bag of 30 marbles. Father gives them another bag containing twice as many marbles as Mother’s bag. The younger brother receives four times as many as the older brother. How many marbles does the older brother receive?

Question illustration
  1. 15
  2. 18
  3. 36
  4. 45
  5. 90

Question 10

Pi arranges the three cards P, Q and R in a row. In what order should he place them to form the largest possible natural number?

Question illustration
  1. PQR
  2. QPR
  3. QRP
  4. RPQ
  5. RQP

Question 11

Complete the grid so that each of the numbers 1, 2, 3 and 4 occurs exactly once in each row and each column. Which number belongs in the bottom-right cell?

Question illustration
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Question 12

On an outdoor activity, pupils plant trees in a straight line, one tree every metre. The distance from the first tree to the last is 20 m. How many trees must they plant?

Question illustration
  1. 40
  2. 42
  3. 19
  4. 20
  5. 21

Question 13

How many small cubes make up the solid shown, including cubes hidden from view?

Question illustration
  1. 7
  2. 8
  3. 9
  4. 10
  5. 11

Question 14

In a village, no house number may contain the digit 3. Houses on the right side of a road receive odd numbers in increasing order: the first is 1 and the second is 5. What number is on the 15th house on that side?

Question illustration
  1. 29
  2. 41
  3. 49
  4. 45
  5. 47

Question 15

A square has perimeter 24 cm. What is its area?

Question illustration
  1. $84\text{ cm}^2$
  2. $64\text{ cm}^2$
  3. $36\text{ cm}^2$
  4. $24\text{ cm}^2$
  5. $144\text{ cm}^2$

Question 16

Find M: $2023×9=2023+2023×2+2023×4+2023×M$.

Question illustration
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5

Question 17

Two tanks have equal capacities. If 15 litres are poured from tank I into tank II, both tanks become half full. Alternatively, starting from the original amounts, pouring 30 litres from tank II into tank I fills tank I. How many litres were initially in tank I?

Question illustration
  1. 30
  2. 45
  3. 60
  4. 90
  5. 180

Question 18

A basket initially contains 24 more apples than oranges. Mother removes 6 apples and 3 oranges. The apples left are then twice the oranges left. How many pieces of fruit were initially in the basket?

Question illustration
  1. 33
  2. 48
  3. 56
  4. 64
  5. 72

Question 19

Thanh has two clocks that both stop during a power cut. When power returns, clock 1 resets to 00:00, while clock 2 resumes from the time at which it stopped. One night the power goes off at 02:00 and returns 45 minutes later. When Thanh wakes at 07:00, how many minutes apart are the two clock readings?

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Question 20

At Nhi’s birthday party, Mother plans to share all the candies equally among Nhi and 11 friends. If one friend does not come, each person receives 1 extra candy. How many candies has Mother prepared?

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