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

TUITIONGOWHERE PRIMARY SCHOOL (AI)

WEIGHTED ASSESSMENT 2 EXAMINATION 2026 - ANSWER KEY (Version 3)

PRIMARY 3 MATHEMATICS

Section A: Multiple Choice Questions (15 marks)

1. What is 4/9 + 3/9? (1 mark) Answer: 1. 7/9 Add numerators: 4 + 3 = 7. Keep denominator: 7/9

2. Which fraction is in its simplest form? (1 mark) Answer: 3. 2/5 2/5 cannot be simplified further. The others can: 4/8 = 1/2, 6/9 = 2/3, 10/15 = 2/3

3. What is 8/10 - 3/10? (1 mark) Answer: 1. 5/10 Subtract numerators: 8 - 3 = 5. Keep denominator: 5/10 (can also be simplified to 1/2)

4. 63 ÷ 9 = ? (1 mark) Answer: 2. 7 63 ÷ 9 = 7 (since 9 × 7 = 63)

5. What is the remainder when 65 is divided by 7? (1 mark) Answer: 3. 2 65 ÷ 7 = 9 remainder 2 (since 7 × 9 = 63, and 65 - 63 = 2)

6. 252 ÷ 6 = ? (1 mark) Answer: 3. 42 252 ÷ 6 = 42 (240 ÷ 6 = 40, 12 ÷ 6 = 2, 40 + 2 = 42)

7. What is 9 × 14? (1 mark) Answer: 2. 126 9 × 14 = 9 × 10 + 9 × 4 = 90 + 36 = 126

8. 6 × 35 = ? (1 mark) Answer: 2. 210 6 × 35 = 6 × 30 + 6 × 5 = 180 + 30 = 210

9. The bar graph shows books read by students. Ali read 6 books and Bala read 9 books. How many more books did Bala read than Ali? (1 mark) Answer: 3. 3 Difference = 9 - 6 = 3 more books

10. In a pictograph, each symbol represents 4 students. If there are 7 symbols for "Swimming", how many students chose swimming? (1 mark) Answer: 4. 28 7 symbols × 4 students = 28 students

11. What is the mode of: 4, 6, 8, 6, 9, 6? (1 mark) Answer: 2. 6 6 appears 3 times, more than any other number

12. How many minutes are in 2 hours 15 minutes? (1 mark) Answer: 2. 135 minutes 2 hours = 2 × 60 = 120 minutes. Total: 120 + 15 = 135 minutes

13. What is $23.50 -$9.75? (1 mark) *Answer: 1. $13.75** *$23.50 - $9.75 =$13.75

14. A notebook costs $4.80. How much do 5 notebooks cost?** *(1 mark)* **Answer: 3.$24.00 5 × $4.80 =$24.00

15. The perimeter of a square is 36 cm. What is the length of each side? (1 mark) Answer: 3. 9 cm Perimeter = 4 × side, so 36 = 4 × side, side = 9 cm

Section B: Short Answer Questions (20 marks)

16. Simplify these fractions to their simplest form: (4 marks)

a) 4/12 = 1/3 (1 mark) Divide both by 4: 4 ÷ 4 = 1, 12 ÷ 4 = 3

b) 9/12 = 3/4 (1 mark) Divide both by 3: 9 ÷ 3 = 3, 12 ÷ 3 = 4

c) 8/20 = 2/5 (1 mark) Divide both by 4: 8 ÷ 4 = 2, 20 ÷ 4 = 5

d) 15/25 = 3/5 (1 mark) Divide both by 5: 15 ÷ 5 = 3, 25 ÷ 5 = 5

17. Calculate: (6 marks)

a) 192 ÷ 8 = 24 (2 marks) Working: 160 ÷ 8 = 20, 32 ÷ 8 = 4, so 20 + 4 = 24 Check: 8 × 24 = 192 ✓

b) 315 ÷ 15 = 21 (2 marks) Working: 15 × 20 = 300, 315 - 300 = 15, 15 ÷ 15 = 1, so 20 + 1 = 21 Check: 15 × 21 = 315 ✓

c) 7 × 56 = 392 (2 marks) Working: 7 × 56 = 7 × 50 + 7 × 6 = 350 + 42 = 392

18. Study the bar graph and answer: (4 marks)

a) Which fruit is the most popular? Apples (1 mark) Apples has the highest number (12 students)

b) How many more students like apples than bananas? 7 (1 mark) 12 - 5 = 7 more students

c) How many students are there in total? 35 (1 mark) 12 + 8 + 5 + 10 = 35 students

d) What fraction of students chose grapes? Write in simplest form. 2/7 (1 mark) 10/35 = 2/7 (divide both by 5)

19. Convert these measurements: (3 marks)

a) 3 hours 45 minutes = 225 minutes (1 mark) 3 hours = 3 × 60 = 180 minutes. Total: 180 + 45 = 225 minutes

*b) $25.00 -$17.35 = $7.65** *(1 mark)* *$25.00 - $17.35 =$7.65

c) 1245 cm = 12 m 45 cm (1 mark) 1245 ÷ 100 = 12 remainder 45. So 12 m and 45 cm

20. Complete the number patterns: (3 marks)

a) 156, 168, 180, 192, 204 (1 mark) Pattern: Add 12 each time. 180 + 12 = 192, 192 + 12 = 204

b) 400, 375, 350, 325, 300 (1 mark) Pattern: Subtract 25 each time. 350 - 25 = 325, 325 - 25 = 300

c) 5, 15, 45, 135, 405 (1 mark) Pattern: Multiply by 3 each time. 135 × 3 = 405

Section C: Word Problems (15 marks)

21. A cake was cut into 8 equal slices. Mother ate 2/8 of the cake and Father ate 3/8 of the cake. What fraction of the cake was eaten altogether? (3 marks)

Working: Fraction eaten = 2/8 + 3/8 (1 mark) = (2 + 3)/8 (1 mark) = 5/8

Answer: 5/8 of the cake (1 mark)

22. A factory produces 234 toys in a day. The toys are packed equally into 9 boxes. How many toys are in each box? (4 marks)

Working: Number of toys in each box = 234 ÷ 9 (1 mark)

Method: 234 ÷ 9 (1 mark) = 180 ÷ 9 + 54 ÷ 9 = 20 + 6 = 26 (1 mark)

Answer: 26 toys (1 mark)

23. Mr Tan bought 8 trays of eggs with 30 eggs in each tray. He used 87 eggs for baking. How many eggs does he have left? (4 marks)

Working: Step 1: Find total number of eggs Total eggs = 8 × 30 (1 mark) = 240 eggs (1 mark)

Step 2: Subtract eggs used Eggs left = 240 - 87 (1 mark) = 153 eggs

Answer: 153 eggs (1 mark)

24. A square playground has a perimeter of 48 m. A rectangular garden has the same perimeter but its length is 15 m. What is the breadth of the garden? (4 marks)

Working: Step 1: Both shapes have the same perimeter = 48 m (1 mark)

Step 2: For the rectangle: Perimeter = 2 × (length + breadth) 48 = 2 × (15 + breadth) (1 mark) 48 ÷ 2 = 15 + breadth 24 = 15 + breadth (1 mark) breadth = 24 - 15 = 9 m

Answer: 9 m (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 3):

• Fractions: Addition, subtraction, simplifying fractions
• Division: Basic division, division with remainder, long division
• Multiplication: 2-digit × 1-digit multiplication
• Data Handling: Bar graphs, pictographs, mode, interpreting data
• Time: Duration calculations, conversions
• Money: Addition, subtraction, multiplication of money
• Measurement: Length and metric conversions
• Geometry: Perimeter of squares and rectangles
• Patterns: Number patterns (addition, subtraction, multiplication)
• Problem Solving: Multi-step word problems