Primary 3 Mathematics Weighted Assessment 2 (Term 3) Paper 2

TUITIONGOWHERE PRIMARY SCHOOL (AI)

WEIGHTED ASSESSMENT 2 EXAMINATION 2026 - ANSWER KEY (Version 2)

PRIMARY 3 MATHEMATICS

Section A: Multiple Choice Questions (15 marks)

1. What is 2/6 + 1/6? (1 mark) Answer: 1. 3/6 Add numerators: 2 + 1 = 3. Keep denominator: 3/6 (can also be simplified to 1/2)

2. Which fraction is equivalent to 3/4? (1 mark) Answer: 1. 6/8 3/4 × 2/2 = 6/8. To check: 3 × 2 = 6 and 4 × 2 = 8

3. What is 5/7 - 2/7? (1 mark) Answer: 1. 3/7 Subtract numerators: 5 - 2 = 3. Keep denominator: 3/7

4. 48 ÷ 6 = ? (1 mark) Answer: 3. 8 48 ÷ 6 = 8 (since 6 × 8 = 48)

5. What is the remainder when 57 is divided by 8? (1 mark) Answer: 1. 1 57 ÷ 8 = 7 remainder 1 (since 8 × 7 = 56, and 57 - 56 = 1)

6. 384 ÷ 4 = ? (1 mark) Answer: 3. 96 384 ÷ 4 = 96 (300 ÷ 4 = 75, 84 ÷ 4 = 21, 75 + 21 = 96)

7. What is 7 × 12? (1 mark) Answer: 2. 84 7 × 12 = 7 × 10 + 7 × 2 = 70 + 14 = 84

8. 5 × 23 = ? (1 mark) Answer: 1. 115 5 × 23 = 5 × 20 + 5 × 3 = 100 + 15 = 115

9. In this bar graph, Sports A has 4 units and Sports B has 7 units. How many more students chose Sports B than Sports A? (1 mark) Answer: 1. 3 Difference = 7 - 4 = 3 more students chose Sports B

10. Which data collection method is best for finding favourite ice cream flavours in your class? (1 mark) Answer: 1. Survey A survey is best for collecting opinions and preferences from a group

11. What is the mean of these numbers: 6, 8, 10, 12? (1 mark) Answer: 2. 9 Mean = (6 + 8 + 10 + 12) ÷ 4 = 36 ÷ 4 = 9

12. How many seconds are in 3 minutes? (1 mark) Answer: 3. 180 seconds 3 minutes × 60 seconds = 180 seconds

13. What is $15.75 +$8.40? (1 mark) *Answer: 1. $24.15** *$15.75 + $8.40 =$24.15 (add cents: 75 + 40 = 115 cents = $1.15, add dollars: 15 + 8 + 1 = 24)

14. If Tom has $50 and spends$18.65, how much does he have left? (1 mark) *Answer: 1. $31.35** *$50.00 - $18.65 =$31.35

15. The area of a rectangle with length 9 cm and breadth 6 cm is: (1 mark) Answer: 3. 54 cm² Area = length × breadth = 9 × 6 = 54 cm²

Section B: Short Answer Questions (20 marks)

16. Complete these equivalent fractions: (4 marks)

a) 2/3 = 4/6 (1 mark) Multiply both numerator and denominator by 2: 2 × 2 = 4, 3 × 2 = 6

b) 1/5 = 3/15 (1 mark) Multiply both numerator and denominator by 3: 1 × 3 = 3, 5 × 3 = 15

c) 3/8 = 6/16 (1 mark) Multiply both numerator and denominator by 2: 3 × 2 = 6, 8 × 2 = 16

d) 4/7 = 12/21 (1 mark) Multiply both numerator and denominator by 3: 4 × 3 = 12, 7 × 3 = 21

17. Work out these calculations: (6 marks)

a) 156 ÷ 12 = 13 (2 marks) Working: 12 × 10 = 120, 156 - 120 = 36, 36 ÷ 12 = 3, so 10 + 3 = 13 Check: 12 × 13 = 156 ✓

b) 247 ÷ 19 = 13 (2 marks) Working: 19 × 10 = 190, 247 - 190 = 57, 19 × 3 = 57, so 10 + 3 = 13 Check: 19 × 13 = 247 ✓

c) 8 × 47 = 376 (2 marks) Working: 8 × 47 = 8 × 40 + 8 × 7 = 320 + 56 = 376

18. Complete this table about favourite colours in a class: (4 marks)

Each tally mark represents 1 student. Count the marks for each colour.

19. Convert these measurements: (3 marks)

a) 2 hours 35 minutes = 155 minutes (1 mark) 2 hours = 2 × 60 = 120 minutes. Total: 120 + 35 = 155 minutes

*b) $12.40 +$7.85 = $20.25** *(1 mark)* *Add cents: 40 + 85 = 125 cents =$1.25. Add dollars: 12 + 7 + 1 = 20. Total: $20.25

c) 950 cm = 9 m 50 cm (1 mark) 950 ÷ 100 = 9 remainder 50. So 9 m and 50 cm

20. Draw a bar graph for this data: (3 marks)

Pets in P3A: Dogs - 8, Cats - 5, Fish - 3, Birds - 2

Model Answer:

Number of Pets
    |
  8 |████████ Dogs
  7 |
  6 |
  5 |█████    Cats
  4 |
  3 |███      Fish
  2 |██       Birds
  1 |
    +------------------
       D   C   F   B

Award marks for:

• Correct scale and labels (1 mark)
• Bars of correct heights (1 mark)
• Title and neat presentation (1 mark)

Section C: Word Problems (15 marks)

21. Mei Lin had 3/4 of a pizza. She ate 1/4 of the pizza. What fraction of the pizza does she have left? (3 marks)

Working: Fraction left = 3/4 - 1/4 (1 mark) = (3 - 1)/4 (1 mark) = 2/4 = 1/2

Answer: 2/4 or 1/2 of the pizza (1 mark)

22. A shop sold 168 toys. They were packed equally into 8 boxes. How many toys were in each box? (4 marks)

Working: Number of toys in each box = 168 ÷ 8 (1 mark)

Method: 168 ÷ 8 (1 mark) = 160 ÷ 8 + 8 ÷ 8 = 20 + 1 = 21 (1 mark)

Answer: 21 toys (1 mark)

23. Sarah has 6 packets of stickers with 24 stickers in each packet. She gives away 38 stickers. How many stickers does she have left? (4 marks)

Working: Step 1: Find total number of stickers Total stickers = 6 × 24 (1 mark) = 6 × 20 + 6 × 4 = 120 + 24 = 144 stickers (1 mark)

Step 2: Subtract stickers given away Stickers left = 144 - 38 (1 mark) = 106 stickers

Answer: 106 stickers (1 mark)

24. A rectangle has a length of 15 cm and a breadth of 8 cm. Another rectangle has the same area but a length of 12 cm. What is its breadth? (4 marks)

Working: Step 1: Find area of first rectangle Area = length × breadth (1 mark) = 15 × 8 = 120 cm² (1 mark)

Step 2: Find breadth of second rectangle Both rectangles have the same area = 120 cm² Area = length × breadth 120 = 12 × breadth (1 mark) breadth = 120 ÷ 12 = 10 cm

Answer: 10 cm (1 mark)

Total: 50 marks

Marking Scheme Summary:

• Section A (MCQ): 15 marks (1 mark each)
• Section B (Short Answer): 20 marks
• Section C (Word Problems): 15 marks
• Total: 50 marks

Grade Boundaries:

• 45-50: Excellent
• 38-44: Very Good
• 30-37: Good
• 25-29: Satisfactory
• Below 25: Needs Improvement

Key Topics Covered (WA2 Version 2):

• Fractions: Addition, subtraction, equivalent fractions
• Division: Basic division, division with remainder, long division
• Multiplication: 2-digit × 1-digit multiplication
• Data Handling: Bar graphs, tally charts, mean, surveys
• Time: Duration calculations, conversions
• Money: Addition, subtraction of money
• Measurement: Length and metric conversions
• Geometry: Area of rectangles
• Problem Solving: Multi-step word problems