VTMO 2017 — Grade 2 — final

Question 1

Calculate $99 - 89 + 88 - 78 + 77 - 67 + 66 - 56$.

$22$
$30$
$40$
$42$
$46$

Question 2

Increase the minuend by $2$ and decrease the subtrahend by $1$. By how much does the difference increase?

Question 3

What follows $20$; $10$; $16$; $7$; $12$; $4$; $8$; …?

$1$
$5$
$7$
$12$
$8$

Question 4

Three siblings have $26$ cards. Hai has strictly the most. What is his minimum possible count?

$10$
$8$
$9$
$7$
$24$

Question 5

Xuan is $6$, Ha $9$, Thu $8$. When Xuan reaches Ha’s present age, how old is Thu?

$9$
$12$
$10$
$11$
$8$

Question 6

Six people shake hands once per pair. How many handshakes?

$5$
$6$
$15$
$16$
$10$

Question 7

From the shape equations, what is the square’s value?

Question illustration

$10$
$8$
$12$
$9$
$11$

Question 8

In the shape sequence, how many stars precede the $21 st$ shape?

Question illustration

$12$
$15$
$16$
$17$
$20$

Question 9

Suu selects two ice-cream flavors from apple, mango, orange, strawberry. How many choices?

$4$
$6$
$12$
$8$
$10$

Question 10

Using $T$-shaped four-square tiles as shown, which of $A \text{--} E$ can be formed?

Question illustration

Figure $A$
Figure $B$
Figure $C$
Figure $D$
Figure $E$

Question 11

Fill the missing value in the third circle.

Question illustration

Question 12

Minh is $12$. Two years ago he was twice Son’s age. How old is Son now?

Question 13

November has $30$ days and December $31$. If November $1$ is Sunday, what weekday is December $1$?

Question 14

An ant follows the marked arrows from A to $B$ on a cube of side $2 \,\mathrm{cm}$. What distance does it travel?

Question illustration

Question 15

$2017$ has digit sum $10$. How many years from $2000$ to $2100$ have digit sum $10$?

Question 16

Khanh has $30$ stickers. Chau takes $10$, later takes five more Pokemon stickers and gives Khanh some other stickers. Khanh finishes with twice his original count. How many does Chau give?

Question 17

Fill $1 \text{--} 9$ once each in the $3 \times 3$ grid with equal row, column, diagonal sums. Find $X$.

Question illustration

Question 18

A basket has $10$ oranges, seven pears and nine apples. How many blind draws guarantee a pear?

Question 19

Each shape is a digit and each row matches one listed number. Find open-circle, open-triangle, filled-circle, heart.

Question illustration

Question 20

Dung, Hong, Chau have different jobs: lawyer, teacher, doctor. Dung is the lawyer’s age; Hong is not the teacher’s age; the teacher is younger than Chau. What is Chau’s job?