SASMO 2016 Primary 3 (Grade 3) Contest

Question 1

Calculate $3\times2016+0\times2016+3\times2016$.

1. 0
2. 2016
3. 6048
4. 12096
5. None of the above

Question 2

Four sports cars travel 4 kilometres in 1 minute. How long does one sports car take to travel 4 kilometres?

1. 1 minute
2. 2 minutes
3. 3 minutes
4. 4 minutes
5. 5 minutes

Question 3

If the day before yesterday was Sunday, how many days are there from today until Sunday? (For example, Monday to Wednesday is counted as two days.)

1. 2
2. 3
3. 4
4. 5
5. 6

Question 4

How many minutes are there in 2 weeks?

1. $2\times7\times24$
2. $(7+7)\times24\times60$
3. $2\times7\times12\times60$
4. $2\times24\times60$
5. $(7+7)\times12\times60$

Question 5

Points $P,Q,R,S$ lie on a line. The lengths $PQ,QR,RS$ are 12 cm, 14 cm and 18 cm respectively. What is the shortest possible distance between $P$ and $S$?

1. 6 cm
2. 8 cm
3. 10 cm
4. 12 cm
5. 14 cm

Question 6

A 12-metre steel pipe is cut into 3-metre pieces. The whole process takes 18 minutes. How long does it take to cut a 12-metre pipe into 6-metre sections?

1. 6 minutes
2. 9 minutes
3. 12 minutes
4. 18 minutes
5. None of the above

Question 7

The sum of 5 consecutive numbers is 500. What is the smallest of the five numbers?

1. 95
2. 96
3. 97
4. 98
5. 99

Question 8

Find the next number in the sequence $21,24,19,26,17,\underline{\hspace{7mm}},\ldots$

1. 18
2. 19
3. 27
4. 28
5. None of the above

Question 9

How many squares are there in the diagram?

1. 8
2. 9
3. 10
4. 11
5. 12

Question 10

Which of the dice shown can be formed by folding the net on the right?

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

Question 11

If the four-digit number $28X8$ is divisible by 3, how many possible values are there for $X$?

1. 1
2. 2
3. 3
4. 4
5. 5

Question 12

How many multiples of 7 are between 20 and 100?

1. 10
2. 11
3. 12
4. 13
5. 14

Question 13

Suppose it is now December. What month will it be 100 calendar months from now?

1. January
2. February
3. March
4. April
5. May

Question 14

In the figure, the numbers 1 to 19 are to be placed in the hexagons. The sum of the numbers in each diagonal and each column is 38. What is the value of $X$?

1. 2
2. 6
3. 11
4. 14
5. 19

Question 15

The first block figure is rotated as shown. Which option shows the result of rotating the second block figure in the same way?

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

Question 16

Cindy left home to buy groceries at 10:15 a.m. She had lunch before returning and reached home at 3:30 p.m. How many minutes was she away from home?

Question 17

Evaluate $2-3+4-5+6-7+\cdots+2014-2015+2016$.

Question 18

In a magic show, a magician placed 3 cards on a table. Each card has a mathematical symbol on one side and a number on the other. He flipped some or all of the cards and rearranged them as shown. What number is on the other side of the card bearing $\times$?

Question 19

There are 18 books on the first shelf and 24 books on the second. How many books must be moved from the first shelf to the second so that the second shelf has twice as many books as the first?

Question 20

The table shows the numbers of pencil cases owned by Bob, Macy, Jane and Danny. Every case contains the same number of pencils. Danny has 27 more pencils than Bob. How many pencils do they have altogether?