SASMO 2018 Primary 3 (Grade 3) Contest

Question 1

What is the total number of hearts in the figure?

1. 51
2. 52
3. 53
4. 54
5. None of the above

Question 2

Which of the following is equal to 2018 cm?

1. 2 metres and 18 centimetres
2. 2 kilometres and 18 centimetres
3. 20 metres and 18 centimetres
4. 201 metres and 8 centimetres
5. None of the above

Question 3

The table shows the scores of Tiffany, Ursula, Vincent and Warren in the Mathcraft Game. Who received the highest total score?

1. Tiffany
2. Ursula
3. Vincent
4. Warren
5. Tiffany and Vincent

Question 4

A mother duck and her ducklings walk in a queue. Joey is 6th from the front and 8th from the back, counting the mother duck. Some ducklings at the back leave, making Joey the middle duckling. How many ducklings leave?

1. 2
2. 3
3. 4
4. 5
5. None of the above

Question 5

George takes 4 minutes to go from the 1st floor to the 3rd floor. He is now on the 2nd floor and has left his water bottle on the 5th floor. How long will it take him to get it?

1. 4 minutes
2. 5 minutes
3. 6 minutes
4. 8 minutes
5. None of the above

Question 6

Find the next number: $3,5,6,10,9,15,12,20,\underline{\hspace{7mm}}$.

1. 13
2. 15
3. 18
4. 25
5. None of the above

Question 7

Hansel wants to buy 2 dice of different colours. The available colours are red, blue, green, yellow, pink and white. How many different two-colour combinations are possible?

1. 5
2. 10
3. 15
4. 20
5. None of the above

Question 8

A palindrome reads the same forwards and backwards; for example, 99, 252 and 4884. How many three-digit palindromes are there?

1. 81
2. 900
3. 90
4. 9
5. None of the above

Question 9

Which of the following cannot form a rectangle?

1. Two identical triangles
2. Two identical squares
3. Five identical squares
4. Four identical triangles
5. Five identical triangles

Question 10

Find the correct shadow of the animals shown on the right.

1. Figure A
2. Figure B
3. Figure C
4. Figure D
5. Figure E

Question 11

Elmo visits Sesame Street Park every Wednesday. If 1 January 2017 was Sunday and February had 28 days, what was the last date in March 2017 on which Elmo visited the park?

1. 28 March
2. 29 March
3. 30 March
4. 31 March
5. None of the above

Question 12

Equal cubes are stacked in a corner as shown. The floor is horizontal, the two walls are vertical, and there are no gaps behind the visible cubes. How many cubes are there altogether?

1. 23
2. 26
3. 28
4. 30
5. None of the above

Question 13

The figure is made of 6 identical rectangles, each with breadth 1 cm. What is the perimeter of the figure?

1. 20 cm
2. 22 cm
3. 24 cm
4. 26 cm
5. None of the above

Question 14

Which piece belongs in the position marked with a question mark?

1. Figure A
2. Figure B
3. Figure C
4. Figure D
5. Figure E

Question 15

A toy store has 43 yoyos in one box and 23 in another. The same number of yoyos is sold from each box. The first box then contains five times as many yoyos as the second. How many yoyos remain altogether?

1. 6
2. 18
3. 24
4. 32
5. None of the above

Question 16

Find the sum $11+13+15+17+19+21+23+25+27+29+31$.

Question 17

How many rectangles are there in the picture?

Question 18

Kevin wrote 30 more letters than Sara, and James wrote 40 more letters than Sara. Altogether they wrote 160 letters. How many letters did Kevin write?

Question 19

Find a two-digit multiple of 6 that is one more than a multiple of 13.

Question 20

Andy shows Zach a number. Zach subtracts 17, divides by 6, adds 39, multiplies by 4, and finally adds 29. The result is 209. What number did Andy show?