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Primary 3 Mathematics Weighted Assessment 1 (Term 1) Paper 1

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Questions

TUITIONGOWHERE PRIMARY SCHOOL (AI)

WEIGHTED ASSESSMENT 1 EXAMINATION 2026

PRIMARY 3 MATHEMATICS

Duration: 45 minutes
Total Marks: 50

INSTRUCTIONS TO STUDENTS

  1. Do not turn over this page until you are told to do so.
  2. Answer all questions.
  3. Write your answers clearly in the spaces provided.
  4. You are not allowed to use a calculator.

Name: _________________________ ( )
Class: Primary 3 ( )
Date: _________________________

SectionMarks
A (MCQ)/15
B (Short Answer)/20
C (Word Problems)/15
Total/50

Section A: Multiple Choice Questions (15 marks)

For each question, four options are given. One of them is the correct answer. Choose the best answer and write 1, 2, 3 or 4 in the brackets.

1. What is the value of digit 7 in 4726? (1 mark)

  1. 7
  2. 70
  3. 700
  4. 7000

( )

2. Which number is smaller than 3568? (1 mark)

  1. 3586
  2. 3658
  3. 3485
  4. 3685

( )

3. 4 × 7 = ? (1 mark)

  1. 11
  2. 28
  3. 32
  4. 47

( )

4. 6 groups of 8 = ? (1 mark)

  1. 14
  2. 42
  3. 48
  4. 54

( )

5. What fraction of this circle is shaded? (1 mark) [Diagram shows circle divided into 4 equal parts with 1 part shaded]

  1. 1/3
  2. 1/4
  3. 2/4
  4. 3/4

( )

6. 3.50+3.50 + 2.25 = ? (1 mark)

  1. $5.25
  2. $5.65
  3. $5.75
  4. $6.75

( )

7. 48 ÷ 6 = ? (1 mark)

  1. 6
  2. 7
  3. 8
  4. 9

( )

8. Express 3 m 45 cm in centimetres. (1 mark)

  1. 48 cm
  2. 315 cm
  3. 345 cm
  4. 3045 cm

( )

9. What is 2567 rounded to the nearest hundred? (1 mark)

  1. 2500
  2. 2600
  3. 2700
  4. 3000

( )

10. Which is equivalent to 2/6? (1 mark) 1. 1/2 2. 1/3 3. 2/3 4. 4/6

( )

11. 584 + 239 = ? (1 mark) 1. 723 2. 823 3. 833 4. 923

( )

12. What comes next in this pattern? (1 mark) 325, 350, 375, 400, ____ 1. 415 2. 420 3. 425 4. 450

( )

13. 7 × 5 = ? (1 mark) 1. 30 2. 35 3. 40 4. 45

( )

14. What is 1/2 of 18? (1 mark) 1. 6 2. 8 3. 9 4. 12

( )

15. Which angle is a right angle? (1 mark) [Four angle diagrams shown] 1. 45° angle 2. 90° angle ← marked with square 3. 120° angle 4. 180° angle

( )

Section B: Short Answer Questions (20 marks)

Show your working clearly and write your answers in the spaces provided.

16. Calculate: (2 marks) 472 + 298 = ________

Working:

17. Calculate: (2 marks) 835 - 467 = ________

Working:

18. Fill in the missing number: (2 marks) 6 × _____ = 42

Answer: ________

19. Study the bar graph. How many more apples than oranges were sold? (2 marks)

*[Bar graph showing: Apples = 25, Oranges = 18, Bananas = 12]*

Working:


Answer: ________ more apples

20. Convert 2 kg 350 g to grams. (2 marks)

Working:


Answer: ________ g

21. What time is shown on the clock? (2 marks)

*[Clock showing 3:25]*

Answer: ________ : ________

22. Find 1/3 of 27. (2 marks)

Working:


Answer: ________

23. Complete the equivalent fraction: (2 marks) 3/4 = ___/8

Working:


Answer: ________

24. What is the perimeter of this rectangle? (2 marks)

*[Rectangle with length 8 cm and width 5 cm]*

Working:


Answer: ________ cm

25. Round 4826 to the nearest 10. (2 marks)

Working:


Answer: ________

Section C: Word Problems (15 marks)

Read each question carefully. Show your working and write your answers clearly.

26. Mary had 245 stickers. She bought 128 more stickers. How many stickers does she have altogether? (3 marks)

Working:

Answer: ________ stickers

27. There are 6 boxes of pencils. Each box contains 9 pencils. How many pencils are there in total? (3 marks)

Working:

Answer: ________ pencils

28. A school has 384 boys and 297 girls. How many more boys than girls are there in the school? (4 marks)

Working:

Answer: ________ more boys

29. Mrs Lim bought a bag for 24.80andawalletfor24.80 and a wallet for 12.65. She gave the cashier $50. How much change did she receive? (5 marks)

Working:

Answer: $________

END OF PAPER

Check your answers carefully before submitting.

Answers

TUITIONGOWHERE PRIMARY SCHOOL (AI)

WEIGHTED ASSESSMENT 1 EXAMINATION 2026 - ANSWER KEY

PRIMARY 3 MATHEMATICS

Total Marks: 50

Section A: Multiple Choice Questions (15 marks)

QuestionAnswerExplanation
12 (70)In 4726, digit 7 is in tens place, so value = 7 × 10 = 70
23 (3485)Compare: 3485 < 3568 ✓. Others are all greater than 3568
32 (28)4 × 7 = 28 (multiplication table)
43 (48)6 groups of 8 = 6 × 8 = 48
52 (1/4)Circle divided into 4 parts, 1 shaded = 1/4
63 ($5.75)3.50+3.50 + 2.25 = $5.75
73 (8)48 ÷ 6 = 8
83 (345 cm)3 m = 300 cm, so 300 + 45 = 345 cm
92 (2600)2567: tens digit is 6 ≥ 5, so round up to 2600
102 (1/3)2/6 = 1/3 (divide both numerator and denominator by 2)
112 (823)584 + 239 = 823
123 (425)Pattern: +25 each time. 400 + 25 = 425
132 (35)7 × 5 = 35 (multiplication table)
143 (9)1/2 of 18 = 18 ÷ 2 = 9
152 (90° angle)Right angle = exactly 90°

Section B: Short Answer Questions (20 marks)

16. 472 + 298 = 770 (2 marks)

Working:

  472
+ 298
-----
  770

Award: 1 mark for correct method, 1 mark for correct answer

17. 835 - 467 = 368 (2 marks)

Working:

  835
- 467
-----
  368

Award: 1 mark for correct method, 1 mark for correct answer

18. 6 × 7 = 42 (2 marks)

Answer: 7

Method: 42 ÷ 6 = 7, or recall multiplication table Award: 2 marks for correct answer

19. Apples vs Oranges comparison (2 marks)

Working:

  • Apples sold: 25
  • Oranges sold: 18
  • Difference: 25 - 18 = 7

Answer: 7 more apples

Award: 1 mark for correct subtraction, 1 mark for correct answer

20. Convert 2 kg 350 g to grams (2 marks)

Working:

  • 2 kg = 2 × 1000 = 2000 g
  • Total = 2000 + 350 = 2350 g

Answer: 2350 g

Award: 1 mark for correct conversion of kg to g, 1 mark for correct total

21. Time on clock (2 marks)

Answer: 3 : 25

Method: Hour hand between 3 and 4 (so 3 o'clock), minute hand on 5 (so 25 minutes) Award: 1 mark for correct hour, 1 mark for correct minutes

22. Find 1/3 of 27 (2 marks)

Working: 27 ÷ 3 = 9

Answer: 9

Method: "Fraction of" means division Award: 1 mark for correct method, 1 mark for correct answer

23. Complete equivalent fraction: 3/4 = ___/8 (2 marks)

Working:

  • To get from 4 to 8, multiply by 2
  • So multiply numerator by 2: 3 × 2 = 6
  • 3/4 = 6/8

Answer: 6

Award: 1 mark for correct method, 1 mark for correct answer

24. Perimeter of rectangle (2 marks)

Working:

  • Length = 8 cm, Width = 5 cm
  • Perimeter = 2 × (length + width)
  • = 2 × (8 + 5)
  • = 2 × 13 = 26 cm

Answer: 26 cm

Award: 1 mark for correct formula/method, 1 mark for correct calculation

25. Round 4826 to nearest 10 (2 marks)

Working:

  • Look at ones digit: 6
  • Since 6 ≥ 5, round up
  • 4826 → 4830

Answer: 4830

Award: 1 mark for correct method, 1 mark for correct answer

Section C: Word Problems (15 marks)

26. Mary's stickers (3 marks)

Working:

  • Mary had: 245 stickers
  • She bought: 128 stickers
  • Total = 245 + 128 = 373 stickers

Answer: 373 stickers

Mark scheme:

  • 1 mark: Identify addition operation
  • 1 mark: Correct setup (245 + 128)
  • 1 mark: Correct calculation

27. Pencils in boxes (3 marks)

Working:

  • Number of boxes: 6
  • Pencils per box: 9
  • Total = 6 × 9 = 54 pencils

Answer: 54 pencils

Mark scheme:

  • 1 mark: Identify multiplication operation
  • 1 mark: Correct setup (6 × 9)
  • 1 mark: Correct calculation

28. Boys vs girls in school (4 marks)

Working:

  • Boys: 384
  • Girls: 297
  • Compare: 384 > 297, so more boys
  • Difference: 384 - 297 = 87

Answer: 87 more boys

Mark scheme:

  • 1 mark: Identify that boys > girls
  • 1 mark: Identify subtraction operation
  • 1 mark: Correct setup (384 - 297)
  • 1 mark: Correct calculation

29. Shopping and change problem (5 marks)

Working:

  • Bag cost: $24.80
  • Wallet cost: $12.65
  • Total cost: 24.80+24.80 + 12.65 = $37.45
  • Amount given: $50.00
  • Change: 50.00−50.00 - 37.45 = $12.55

Answer: $12.55

Mark scheme:

  • 1 mark: Add bag and wallet costs
  • 1 mark: Correct total cost ($37.45)
  • 1 mark: Identify subtraction for change
  • 1 mark: Correct setup (50.00−50.00 - 37.45)
  • 1 mark: Correct final answer

Alternative method: Calculate change in steps

  1. Change from bag: 50.00−50.00 - 24.80 = $25.20
  2. Then subtract wallet: 25.20−25.20 - 12.65 = $12.55

Common Mistakes and Marking Notes

Section A Common Errors:

  • Q1: Choosing digit itself (7) instead of place value (70)
  • Q9: Rounding in wrong direction or to wrong place value
  • Q10: Not simplifying fraction properly

Section B Common Errors:

  • Q16-17: Alignment errors in vertical addition/subtraction
  • Q20: Forgetting to convert kg to g first
  • Q23: Adding denominators instead of finding equivalent fraction

Section C Common Errors:

  • Q26-27: Wrong operation choice (multiplication vs addition)
  • Q28: Calculating total instead of difference
  • Q29: Missing one step in multi-step problem

Marking Guidelines:

  • Follow through marking: If student makes error in early step but follows correct method, award partial credit
  • Method marks: Award marks for correct approach even if calculation is wrong
  • Units: Deduct marks if units are missing where required
  • Final answer: Must be clearly indicated for full marks

Grade Boundaries (Suggested)

GradeMarksPercentage
A45-5090-100%
B40-4480-89%
C35-3970-79%
D30-3460-69%
EBelow 30Below 60%

Performance Analysis by Section:

Strong Performance Expected: Section A (MCQ) - direct recall and simple computation Moderate Performance Expected: Section B - application of learned procedures
Challenging Areas: Section C word problems - requires reading comprehension and operation selection

Remedial Recommendations by Score:

Below 30: Focus on basic number facts and place value concepts 30-39: Practice word problem analysis and multi-step procedures 40-44: Work on accuracy and speed for exam conditions 45+: Ready for more complex P3 topics and SA1 preparation

This answer key is developed based on actual P3 exam paper analysis and MOE marking standards