SEA Mathematics 2021 Past Paper

Write the numeral represented below.

Answer _____________________________

Write the missing number in the box below. 64 = ____ ^2

Calculate $305 \times 7$

Answer _____________________________

Divide $288$ by $9$

Answer _____________________________

Write $\frac{37}{5}$ as a mixed number.

Answer _____________________________

$3\frac{5}{9} - \frac{1}{9} =$ _____________________________

Draw a circle around the 4 that has the value of 4 tenths.

Write ONE of the following symbols in the box below to make the number sentence correct.

$> = <$

0.63 \ \ ____ \ \ 0.36

Calculate $40\% \text{ of } 500$

Answer _____________________________

Daniel used the coins and bills below to buy a T-shirt. What was the cost of the T-shirt?

Answer $ _____________________________

What is the MOST appropriate standard unit for recording the height of a room? Answer _____________________________

Complete the statement below. $17.42 \text{ kg} = \text{<lines>} \text{ g}$

A watermelon on a scale is shown below.

What is the mass of the watermelon?

Answer _____________________________ kg

Kelly arrived 10 minutes after the start of a test. No additional time was given.

How much time did Kelly have to complete the test?

Answer _____________________________ minutes

Which of the shapes shown below has a uniform cross-section?

Answer _____________________________

The hour hand of the clock shown below moved from 3 to 12.

How many quarter turns did it make? Answer _____________________________ quarter turns

Which angle in the shape shown below is less than a right angle?

Answer _____________________________

The mean of 5 numbers is 86. What is the sum of the 5 numbers?

Answer _____________________________

Complete the tally chart below to show Jaheem's cricket score.

The table below shows the places a group of students visited.

Which place represents the mode?

Answer _____________________________

Complete the bill shown below.

A banner is painted in three colours, $\frac{3}{5}$ blue, $\frac{1}{10}$ red and the remainder white.

What fraction of the banner is painted white?

Answer _____________________________

Jerome has $17.5$ m of rope to make swings. Each swing requires $2$ m of rope. How many swings can he make from the rope? Answer _____________________________ swings

One third of a number is 18. What is $\frac{5}{6}$ of the same number?

Answer _____________________________

Jenny and Cindy picked 72 cherries altogether. Jenny picked 16 cherries more than Cindy.

How many cherries did each girl pick?

Answers Cindy picked <lines> cherries Jenny picked <lines> cherries

Maria and Sam bought the items shown below.

Calculate the TOTAL cost of one iPad, one smartwatch and one cellphone. Answer $ _____________________________

Jessie has some marbles. The number of marbles he has is more than 50 but less than 100. When the marbles are placed in groups of 10, there is a remainder of 3 and when they are placed in groups of 6, there is a remainder of 1. How many marbles does Jessie have? Answer _____________________________ marbles

Two students were asked to use manipulatives to add $\frac{4}{5}$ and $\frac{3}{10}$. Fraction pieces and counters were used as shown below.

Priya's fraction pieces

Sharda's counters

State which student's manipulatives represent the correct solution, and explain why.

Answer _____________________________

Amanda left school at 3:20 p.m. and arrived home $\frac{3}{4}$ of an hour later.

What time did Amanda arrive home?

Answer _____________________________ p.m.

Two lengths, A and B are shown below.

What is the sum of the lengths of A and B?

Answer _____________________________ cm

Roadworks Company paints 20 white lines on the highway. The lines are 1.5 m in length and 2 m apart as shown below. Roadworks begins painting from Point A.

What is the distance from Point A to the end of the 20th line painted?

Answer _____________________________ m

The incomplete table below shows the times taken by 5 cyclists to complete a race.

Nazra won the race and was 1.35 minutes faster than the cyclist who placed second.

What was Nazra's time, in minutes?

Answer _____________________________ minutes

Draw all the faces of a triangular prism.

Complete the shape using AB as the line of symmetry.

The tally chart below shows the food chosen by a class of 27 students.

What percentage of the class chose the mode?

Answer _____________________________ %

The incomplete pictograph below represents a total of 105 toy cars owned by 4 boys.

Complete the pictograph to show the number of toy cars owned by Lex.

Macy shared plastic bottles and straws between Group A and Group B. The number of bottles given to Group B was $\frac{2}{3}$ the number given to Group A. For every 4 bottles Macy gave to a group, she gave 5 straws.

Complete the table to show the number of plastic bottles and straws each group received.

The diagram below shows the time taken by Lenny to travel from home to school. School starts at 8:30 a.m. Lenny arrived at school 10 minutes early. Ravi took 12 minutes less than Lenny to walk from his home to Park Place junction.

What time did Ravi leave home to arrive at Park Place junction at the same time as Lenny?

Answer _____________________________ a.m.

(a) On the grid below, connect dots to form a quadrilateral with one line of symmetry and no parallel sides.

(b) Draw the line of symmetry on the quadrilateral in part (a).

The incomplete bar graph below shows the number of fruits sold in a school's cafeteria.

The number of portugals sold was 96. The number of mangoes sold was equal to $\frac{1}{3}$ the number of portugals. The mean number of fruits sold was 60. Draw the bar to show the number of bananas sold.