SEAMO 2020 — Paper A — Grade 1–2

Question 1

How many triangles are there altogether?

Question illustration

$4$
$6$
$8$
$9$
$10$

Question 2

How many rabbits are equivalent to a bull, using the illustrated relationships?

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Question 3

Find $1+2+3+4+\cdots+11+12$.

$60$
$64$
$68$
$72$
$78$

Question 4

Find the perimeter of the figure.

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$90\text{ cm}$
$100\text{ cm}$
$110\text{ cm}$
$120\text{ cm}$
$130\text{ cm}$

Question 5

How many cubes are in the model, including hidden supporting cubes?

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

Question 6

A farm has $10$ ostriches and goats with $32$ legs. An ostrich has $2$ legs and a goat has $4$. How many goats are there?

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$6$
$7$
$8$
$11$
$12$

Question 7

Given $2*3=10$, $3*4=21$, $4*5=36$, find $5*6$.

$44$
$55$
$66$
$70$
$77$

Question 8

What is the time in Figure $4$?

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$10{:}20\text{ am}$
$10{:}25\text{ am}$
$10{:}30\text{ am}$
$10{:}35\text{ am}$
None of the above

Question 9

Find the missing number.

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$12$
$13$
$14$
$15$
$16$

Question 10

From left to right, which operations replace the question marks in $4\;?\;4\;?\;4\;?\;4\;?\;4=2$?

$\times\;\div\;+\;-$
$-\;\div\;-\;\div$
$\times\;+\;\div\;-$
$\times\;\times\;-\;-$
$\times\;\times\;+\;+$

Question 11

Each letter represents a digit. If $\overline{TH}+\overline{ATH}+\overline{MATH}=2019$, find $A$.

Question 12

One cut divides a cake into $2$ pieces and two cuts into $4$. What is the greatest number of pieces from three cuts, as shown by cuts across the cake face?

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$6$
$7$
$9$
$10$
$11$

Question 13

Which listed numbers are not divisible by $7$: $21,35,63,45,70,17$?

$35,70$
$35,63$
$63,45$
$45,17$
None of the above

Question 14

Find the missing letter: Z, U, P, K, ( ), …

Question 15

An archer shoots five arrows without missing the target. Each scores $1$, $3$ or $5$ according to the region hit. Which listed total can the archer score?

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$6$
$10$
$15$
$18$
$22$

Question 16

How many routes can the postman take to the house through A, moving only in the arrow directions?

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$9$
$10$
$11$
$12$
$14$

Question 17

Students stand in a rectangular grid. James has $3$ students in front, $1$ behind, $5$ to his left and $3$ to his right. How many students are there?

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$45$
$50$
$55$
$60$
None of the above

Question 18

A hound runs $60\text{ m}$ in $4$ seconds and a rabbit runs $20\text{ m}$ in $2$ seconds. The rabbit is $30\text{ m}$ ahead. How many seconds until the hound catches it?

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$3$
$4$
$5$
$6$
None of the above

Question 19

Which two balls, one from each group, should be exchanged to make the group totals equal?

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$45,40$
$33,39$
$33,27$
$45,39$

Question 20

If Mark buys $3$ bottles of water he has $1$ dollar left; if he buys $5$ he is $5$ dollars short. What is the price of one bottle?

$1.00$
$1.50$
$2.00$
$2.50$
$3.00$