VTMO 2019 — Grade 3 — final

Question 1

The diagram gives Dung’s and Minh’s candies. What is their combined total?

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$20$
$25$
$40$
$35$
$45$

Question 2

Find $A+B$ in $\overline{A2}-\overline{2B}=38$.

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$10$
$6$
$4$
$9$
$14$

Question 3

A teacher buys notebooks as gifts for good students. Each gift contains $15$ notebooks. She packs $12$ gifts and has $10$ notebooks left. How many did she buy?

$180$
$170$
$200$
$190$
$210$

Question 4

Each side of a square handkerchief has eight embroidered flowers, including a flower at each corner. How many distinct flowers are on its boundary?

$32$
$28$
$36$
$30$
$34$

Question 5

An, Binh and Chau play five games. First place earns $5$ points, second $3$, and third $1$ in each game. Which total can Binh not obtain?

$5$
$15$
$17$
$18$
$19$

Question 6

Five teams play a volleyball tournament with no draws. Their records so far are in the table below. How many matches has team $E$ won?

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Question 7

How many numbers have distinct digits whose product is $12$, for example $34$ or $216$?

$4$
$10$
$12$
$16$
$20$

Question 8

Numbers fill the tower according to a rule. Calculate $A+B$.

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$65$
$50$
$750$
$800$
$850$

Question 9

A pet store has $30$ white and gray animals. Of its $20$ white animals, $7$ are rabbits. Eight gray animals are not rabbits. How many rabbits are there?

$7$
$9$
$10$
$12$
$15$

Question 10

Find $X$ and $Y$ in $6 , 0 , 13 , 12 , 20 , 24 , 27 , 36 , X , Y , 41 , 60$.

$34 , 46$
$36 , 48$
$34 , 52$
$34 , 48$
$30 , 50$

Question 11

A mother has six identical cakes. Into how many equal pieces must each cake be cut, at minimum, to share all the cakes equally among eight children?

$4$
$6$
$2$
$3$
$10$

Question 12

Each letter in the table represents a number. The rightmost column gives row sums, and the bottom row gives column sums. Find $T\times M\times O$.

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$65$
$50$
$60$
$80$
$70$

Question 13

How many elephants are needed to balance the third scale below?

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Question 14

The solid shown is a cube. Which of the following cardboard nets cannot be folded into a cube?

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Net $A$
Net $B$
Net $C$
Net $D$
Net $E$

Question 15

Find the mirror reflection of the following figure.

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

Question 16

In a certain year February has five Sundays. What weekday is January $13$ of that year?

An amusement park offers option $1$: admission for $150$ thousand dong plus $30$ thousand per game; option $2 : 350$ thousand for admission and unlimited games. Khang chooses option $1$ because it is cheaper. What is the most games he can have played?