Primary 6 Maths Weighted Assessment 2 (WA2) – Test 2

1. Round 37.485 to the nearest tenth.

📖 REMINDER: To round to the nearest tenth, look at the hundredths digit. If it is 5 or greater, round the tenths digit up. If it is less than 5, leave the tenths digit unchanged.

37.4

37.5

37.48

38.0

2. Which of the following is likely to be the height of a standard refrigerator?

📖 REMINDER: Consider the appropriate unit of measurement for household items. Think about whether centimeters, meters, or other units make sense for the object's size.

WA2,HPPS,2024,TestHPPS,Measurement

1.8 m

1.8 cm

18 m

180 cm

3. The diagram below shows a number line with equally spaced marks. What is the value of X?

📖 REMINDER: First find the interval between the known equally spaced points, then use it to find the missing value. All marks are equally spaced.

WA2,ACSJPS,2024,TestACSJPS,Number Sense,Grade 5-6

14.2

14.4

14.6

14.8

4. 4 friends shared a box of chocolates. The ratio of Amy's chocolates to Ben's chocolates to Chloe's chocolates to
David's chocolates is 3 : 5 : 4 : 6. David received 105 chocolates. How many chocolates did Amy, Ben, and Chloe receive altogether?

📖 REMINDER: Use the ratio to find the value of one unit, then calculate the total for the other three friends.

180

195

210

225

5. A bookstore sold 80 novels in March. In April, it sold 64 novels.
What is the percentage decrease in the number of novels sold in April?

📖 REMINDER: Compare the change in quantity to the original amount, then express it as a percentage.

16%

20%

25%

80%

6. A rope of length 24 m was cut into 3 pieces. The first piece was 4 times as long as the second piece.
The second piece was 3 times as long as the third piece. How long was the second piece of rope?

📖 REMINDER: Assign a variable to represent the smallest piece and use the given relationships to form an equation.

WA2,HPPS,2024,TestHPPS,Algebra,Grade 5-6

1.5 m

2.1 m

4.5 m

6.3 m

7. After a discount of 30%, a customer would have to pay $84 for a dinner set. A member gets an additional discount of $18.
Find the percentage discount given to the member for the dinner set.

📖 REMINDER: First find the original price, then calculate the member's final price and discount.

WA2,HPPS,2024,TestHPPS,Percentage,Grade 5-6

15%

20%

40%

45%

8. Ben and Clara collected stamps over 2 days. On Monday, Ben collected 16 stamps more than Clara.
On Tuesday, Ben collected another 24 stamps and Clara collected another 18. At the end of the two days,
Ben collected 3/4 of the total number of stamps. What was the total number of stamps Clara collected
on Monday and Tuesday?

📖 REMINDER: Set up variables for Monday's collections and form equations using the given ratio.

WA2,HPPS,2024,TestHPPS,Algebra,Grade 5-6

9. Express 6 ¹³⁄₂₀ as a decimal.

Answer:

📖 REMINDER: Convert the fraction to a decimal first, then add it to the whole number.

10. Express 6.5% as a fraction in its simplest form:

Answer:

📖 REMINDER: Percentage means "per hundred." Convert the decimal percentage to a fraction over 100, then simplify.

11. Leah paid $880 for a tennis racket and 5 cans of tennis balls. The price of a can of tennis balls
was ³⁄₄₀ of the price of the tennis racket. How much did Leah pay for the tennis racket?

Answer: $

📖 REMINDER: Let the price of the racket be a variable, then express the ball price in terms of that variable, and form an equation from the total.

12. A club has 60 male and 90 female members. 20% of the male members and 15% of the female members are
working professionals, and the remaining members are not working professionals. What percentage of the
members are not working professionals?

Answer: %

📖 REMINDER: Calculate the number of professionals in each group first, then find the total number of non-professionals, and finally express as a percentage of the total members.

13. Mrs Lee has ribbons of 3 different colours. 9 of the ribbons are blue. The ratio of the number of red ribbons
to the number of green ribbons is 4 : 5. What is the ratio of the number of blue ribbons to the number of green ribbons?

Answer:

📖 REMINDER: The ratio of red to green is given, but the question asks for blue to green. Since total isn't given, the answer should be expressed in terms of the given numbers.

WA2,HPPS,2024,TestHPPS,Ratio,Grade 5-6

14. Mrs Tan bought 180 notebooks and 120 pens for her students. She divided the notebooks equally among them
and had 12 notebooks left. She also divided the pens equally among the students and had 8 pens left.
How many students were there?

Answer:

📖 REMINDER: The number of students must be a common divisor of (total minus remainder) for both items.

15. A group of friends decided to split the bill for a dinner equally. When calculating, one friend mistakenly
used 7 people instead of the actual 6 people. Each person ended up paying $5 less than they should have.
What was the total bill?

Answer: $

📖 REMINDER: The difference between the wrong share and correct share comes from dividing by wrong vs. right number of people.

16. The average cost of 4 different calculators is $18.25. The total cost of 3 of the calculators is $42.60.
What is the cost of the fourth calculator?

Answer: $

📖 REMINDER: Use the average to find the total cost of all items, then subtract the known total to find the missing item's cost.

17. Sara had 175 stickers and Tom had 145 stickers. After Sara gave some of her stickers to Tom,
the ratio of the number of stickers that Sara had to the number of stickers that Tom had was 2 : 3.
How many stickers did Tom have in the end?

Answer:

📖 REMINDER: The total number of stickers remains constant. Use the final ratio to find Tom's share of the total.

WA2,HPPS,2024,TestHPPS,Ratio,Grade 5-6

18. XYZ Toy Store sells only 1 type of robot toy. The bar graph below shows the number of robot toys the
store sold from January to May. The bar for May has not been drawn.

(a) Given that the average number of robot toys sold from January to May was 60, find the number of robot toys sold in May.

Answer: (a) robot toys

(b) The total amount that the store collected from all the robot toys sold in March was $1,090.00 including 9% GST. Find the cost of 1 robot toy excluding GST.

Answer: (b) $

📖 REMINDER: For (a), use the average to find total sold, then subtract known months. For (b), remove GST first to find the pre-tax amount, then divide by quantity.

19. Mike takes 12 days to paint 3 identical murals while Sarah takes 24 days to paint 5 identical canvases.
Given that Mike and Sarah started painting on the same day, how many canvases would Sarah have
painted completely by the time Mike has painted 21 murals?

Answer : canvases

📖 REMINDER: First find each person's work rate (items per day), then calculate the time Mike needs for his target, and finally find how many complete items Sarah finishes in that time.

WA2,HPPS,2024,TestACSJPS,ratio

20. Ava, Ben, and Chloe had 84 marbles altogether. Ava gave ¹⁄₄ of her marbles to
Ben and ¹⁄₆ of her marbles to Chloe. After that, all 3 children had the same number of marbles.

a) What is the ratio of the number of marbles Ava had to the number of marbles Ben had to the number of marbles Chloe had at first?

Answer: {{{12:4:5}}}

b) How many more marbles did Ava have than Ben at first?

Answer: {{{32}}} marbles

📖 REMINDER: Let Ava's initial marbles be a variable. Find how many she gave away and kept. Set up equations based on the final equal amounts.

21. A store had 80 pens and some notebooks at first. After 10 pens and 25% of the notebooks were sold,
the store had a total of 100 pens and notebooks left. How many notebooks did the store have at first?

Answer: notebooks

📖 REMINDER: Let the initial number of notebooks be a variable. Subtract the items sold from the initial total and set up an equation.

22. The semicircle below has a radius of 20 cm. What is the perimeter of the shaded figure? (Take π = 3.14)

Answer: cm

📖 REMINDER: Perimeter of shaded figure = curved part + straight diameter.

23. A solid rectangular block has a square base. The area of the square base is 36 cm². The height of the block is 15 cm.
What is the volume of the block?

📖 REMINDER: Volume = Base Area × Height.

WA2,MBSP,2024,TestMBSPWA22024,Measurement,Primary 5

90 cm³

180 cm³

216 cm³

540 cm³

24. The figure below shows parallelogram WXYZ. Which of the following is a property of a parallelogram?

📖 REMINDER: Opposite angles are equal, adjacent angles add to 180°.

WA2,MBSP,2024,TestMBSPWA22024,Geometry,Primary 5

∠w = ∠z

∠w + ∠z = 180°

It has only one pair of parallel sides.

It has only one pair of equal angles.

25. A large rectangle is made up of 6 identical right-angled triangles as shown in the diagram.
The ratio of the shorter side (b) to the longer side (h) of each triangle is 2 : 5. The total perimeter of the large rectangle is 88 cm.

(a) Find the length of the base (b) and height (h) of one triangle.

Answer: (a) b = cm, h = cm

(b) Find the total area of the large rectangle.

Answer:

📖 REMINDER: The rectangle's length = 3b, width = h. Use ratio units to find actual lengths.

26. In the figure below, AB and CD are straight lines that intersect at point O. Ray OE is perpendicular to line AB. If ∠AOD = 150°,
find the value of ∠y.

Answer: °

📖 REMINDER: Angles on a straight line sum to 180°. Perpendicular lines form 90° angles.

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