SEAMO 2018 Paper A © TCIMO 1 1 Find the missing number 3 , 4 , 7 , 11 , 18 , ( ) , 47 , (A) 27 (B) 28 (C) 29 (D) 31 (E) None of the above 4 Evaluate 1 + 2 + 3 +⋯+ 9 + 10 + 9 + 8 + ⋯+ 2 + 1 (A) 89 (B)[.]
Trang 21 Find the missing number
3 , 4 , 7 , 11 , 18 , ( ) , 47 , …
(A) 27
(B) 28
(C) 29
(D) 31
(E) None of the above
4 Evaluate
1 + 2 + 3 + ⋯ + 9 + 10 + 9 + 8 + ⋯ + 2 + 1
(A) 89 (B) 90 (C) 99 (D) 100 (E) None of the above
5 Find the 50th digit in
3 5 8 0 3 5 8 0 3 5 …
(A) 3 (B) 5 (C) 8 (D) 0 (E) None of the above
2 How many cubes are there in the
figure below?
(A) 13
(B) 14
(C) 15
(D) 16
(E) 17
6 Find the value of the star
(A) 5 (B) 6 (C) 7 (D) 8 (E) None of the above
3 Find the value of M
(A) 3
(B) 4
(C) 5
(D) 6
QUESTIONS 1 TO 10 ARE WORTH
3 MARKS EACH
Trang 37 Find the missing figure below
(A)
(B)
(C)
(D)
(E) None of the above
9 My grandmother is 56 years old
My mum is 31 years old
I am 7 years old
In how many years is the sum of our ages 100?
(A) 5 (B) 4 (C) 3 (D) 2 (E) 1
10 What time should come next in the sequence below?
(A) 5:10 PM (B) 5:20 PM (C) 5:30 PM (D) 5:40 PM (E) 5:50 PM
8 Find the missing number
(A) 31
(B) 33
(C) 29
(D) 32
(E) None of the above
Trang 411 Mohammed wrote the numbers 1 to
24 on the whiteboard as shown:
1 2 3 4 5 6 … 2 2 2 3 3 2 4
How many times did he write the
digit ‘2’ altogether?
(A) 5
(B) 6
(C) 7
(D) 8
(E) 9
13 Which of the following figures can be traced without lifting your pencil and without tracing over the same lines?
(A) All except Fig 1 (B) All except Fig 2 (C) All except Fig 3 (D) All except Fig 4 (E) All of the above
12 Basket A has 54 apples Basket B has
18 apples Cindy moves 6 apples at a
time from Basket A to Basket B How
many times must she do this so that
both baskets have the same number
of apples?
(A) 3
(B) 4
(C) 5
(D) 6
(E) None of the above
14 The digits 2, 4 and 7 can form six different 2-digit numbers What is the difference between the largest and smallest of these numbers?
(A) 48 (B) 50 (C) 52 (D) 54 (E) None of the above QUESTIONS 11 TO 20 ARE WORTH
4 MARKS EACH
Trang 515 There are 26 chickens and rabbits in
a farm The farmer counted 80 legs
together
How many rabbits are there on the
farm?
(A) 14
(B) 15
(C) 16
(D) 17
(E) None of the above
17 What do we get if all the figures are stacked on top of each other?
(A)
(B)
(C)
(D) (E) None of the above
16 How many triangles are there in the
figure below?
(A) 7
(B) 8
(C) 9
(D) 10
(E) 11
18 John paid $12 for 2 pens and
2 pencils Mark paid $22.50 for 2 pens and 5 pencils How much is a pencil?
(A) $3.20 (B) $3.50 (C) $3.80 (D) $4.10 (E) $4.30
Trang 619 Shawn stays in the 6th floor of an
apartment block Jessie stays in the
3rd floor of the same block If Shawn
takes 4 minutes to walk from the
1st floor to Jessie’s apartment How
long, in minutes, does he take to
walk from the 1st floor to his own
apartment?
(A) 6
(B) 8
(C) 10
(D) 12
(E) None of the above
22 There are 7 days in a week If today
is Tuesday, on which day of the week
is the 100th day from today?
23 The masses below are measured in grams
What is the mass of A?
20 Find the value of the square
(A) 67
(B) 79
(C) 83
(D) 87
(E) None of the above
24 Each row represents one of the following numbers: 892, 485, 364, 624
Which number does Row 2 represent?
21 Find the sum of first 48 numbers in:
1 , 3 , 5 , 7 , 8 , 1 , 3 , 5 , 7 , 8 , 1 , 3 , …
QUESTIONS 21 TO 25 ARE WORTH
6 MARKS EACH
Trang 725 97 numbers are arranged in the
sequence as shown below
What number does M represent?
End of Paper
Trang 8SEAMO 2018
Paper A – Answers Multiple-Choice Questions
Questions 1 to 10 carry 3 marks each
Questions 11 to 20 carry 4 marks each
Free-Response Questions
Questions 21 to 25 carry 6 marks each