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SEAMO 2016 — Paper A — Grade 1–2

Question 1

What is the missing number?

Question illustration
  1. $17$
  2. $19$
  3. $21$
  4. $23$
  5. $30$

Question 2

How many triangles are in the figure?

Question illustration
  1. $10$
  2. $11$
  3. $12$
  4. $13$
  5. $14$

Question 3

Vanessa uses coins to form a triangle. Each of its $3$ corners has a coin and each side has $6$ coins. How many coins does she use?

Question illustration
  1. $12$
  2. $13$
  3. $14$
  4. $15$
  5. $16$

Question 4

Calculate $50\times101$.
  1. $1010$
  2. $4350$
  3. $5050$
  4. $10100$
  5. $50500$

Question 5

Two numbers have sum $80$ and difference $12$. Find the larger number.
  1. $32$
  2. $40$
  3. $46$
  4. $48$
  5. $52$

Question 6

Find $1+2+3+\cdots+18+19+20$.
  1. $190$
  2. $195$
  3. $200$
  4. $210$
  5. $220$

Question 7

How many of the shown tiles are needed to cover the square?

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

Question 8

If the numbers continue in the shown arrangement, which row contains $47$?

Question illustration
  1. Row $A$
  2. Row $B$
  3. Row $C$
  4. Row $D$
  5. Row $E$

Question 9

Find $2+22+222+2222+22222$.

Question illustration
  1. $24680$
  2. $24690$
  3. $24700$
  4. $24710$
  5. None of the above

Question 10

What is the least number of colours needed for the petals, with no neighbouring petals having the same colour?

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

Question 11

Jennifer’s party starts and ends at the times shown. How long is the party, in minutes?

Question illustration
  1. $300$
  2. $305$
  3. $310$
  4. $320$
  5. $330$

Question 12

How many ways are there to put $20$ oranges into $3$ baskets so that each basket has an even number of oranges?

Question illustration
  1. $8$
  2. $9$
  3. $10$
  4. $11$
  5. None of the above

Question 13

Uncle Sam delivers a parcel from $A$ to $B$. How many routes follow the grid edges, moving only up or right?

Question illustration
  1. $20$
  2. $21$
  3. $22$
  4. $23$
  5. $24$

Question 14

How many dots are in Figure $5$?

Question illustration
  1. $12$
  2. $13$
  3. $14$
  4. $15$
  5. $16$

Question 15

Jane writes all whole numbers from $1$ to $59$. How many digits does she write altogether?

Question illustration
  1. $107$
  2. $109$
  3. $111$
  4. $113$
  5. $115$

Question 16

A file costs $70$ cents. Akshta has five $10$-cent coins, three $20$-cent coins and one $50$-cent coin. How many ways can she pay exactly, without change?

Question illustration
  1. $5$
  2. $6$
  3. $7$
  4. $8$
  5. None of the above

Question 17

Find the missing number: $1,1,2,3,5,8,13,\square,34,55,\ldots$.
  1. $18$
  2. $19$
  3. $20$
  4. $21$
  5. $22$

Question 18

What is the least number of dart throws needed to score exactly $100$ on this board?

Question illustration
  1. $2$
  2. $3$
  3. $4$
  4. $5$
  5. None of the above

Question 19

A number is reduced by $8$, multiplied by $5$, then increased by $8$. The result is $48$. Find the original number.
  1. $14$
  2. $15$
  3. $16$
  4. $17$
  5. None of the above

Question 20

Find the value of the circle from the three equations shown.

Question illustration
  1. $12$
  2. $20$
  3. $26$
  4. $28$
  5. None of the above