Primary 4 Mathematics Whole Numbers Quiz

P4 Maths Quiz: Whole Numbers - ANSWER KEY

Questions: 20
Time: 30 minutes
Total Marks: 40

---

Section A: Multiple Choice Questions (10 marks)

1. What is the value of the digit 8 in the number 68,423? (2 marks)

Answer: (4) 8000

Explanation: The digit 8 is in the thousands place, so its value is 8 × 1000 = 8000

2. Which number is greater than 74,569? (2 marks)

Answer: (2) 74,659

Explanation: Compare digits from left to right: 74,659 > 74,569 because 6 > 5 in the hundreds place

3. Round 67,285 to the nearest thousand. (2 marks)

Answer: (1) 67,000

Explanation: Look at the hundreds digit (2). Since 2 < 5, round down to 67,000

4. What is the missing number in this pattern? (2 marks) 12,500, 15,000, 17,500, _____, 22,500

Answer: (2) 20,000

Explanation: The pattern increases by 2,500 each time: 17,500 + 2,500 = 20,000

5. In the number 95,076, which digit is in the ten thousands place? (2 marks)

Answer: (1) 9

Explanation: Place values are: 9 (ten thousands), 5 (thousands), 0 (hundreds), 7 (tens), 6 (ones)

---

Section B: Short Answer Questions (15 marks)

6. Write eighty-three thousand, four hundred and nine in figures. (3 marks)

Answer: 83,409

Explanation: 80,000 + 3,000 + 400 + 9 = 83,409

7. Arrange these numbers from smallest to greatest: (3 marks) 86,742 86,724 86,472 86,274

Answer: 86,274, 86,472, 86,724, 86,742

Explanation: Compare digits from left to right. All start with 86, so compare hundreds, then tens, then ones.

8. Find the sum of: (3 marks) 45,678 + 29,564 = ?

Working:

  45,678
+ 29,564
--------
  75,242

Answer: 75,242

9. What is the difference between the largest and smallest 5-digit numbers you can make using the digits 8, 3, 0, 7, 1? (3 marks)

Working:

• Largest number: 87,310 (arrange digits in descending order, 0 cannot be first)
• Smallest number: 10,378 (arrange digits in ascending order, 0 cannot be first)
• Difference: 87,310 - 10,378 = 76,932

Answer: 76,932

10. Complete the number pattern: (3 marks) 72,000, 69,000, 66,000, _____, 60,000

**Answer: 63,000**

*Explanation: The pattern decreases by 3,000 each time: 66,000 - 3,000 = 63,000*

---

Section C: Word Problems (15 marks)

11. A cinema has 3 halls. Hall A has 24,568 seats, Hall B has 18,734 seats and Hall C has 19,896 seats. How many seats are there altogether? (4 marks)

Working:

  24,568
  18,734
+ 19,896
--------
  63,198

Answer: 63,198 seats

12. Mrs Tan bought a car for $89,500. She sold it for$67,200. How much money did she lose? (4 marks)

Working:

  89,500
- 67,200
--------
  22,300

Answer: She lost $22,300

13. A factory produced 45,600 toys in January and 38,750 toys in February. In March, they produced 6,850 more toys than in February. (4 marks)

(a) How many toys did they produce in March?

Working:

  38,750
+  6,850
--------
  45,600

Answer: 45,600 toys

(b) How many toys did they produce in the three months altogether?

Working:

  45,600 (January)
  38,750 (February)
+ 45,600 (March)
--------
 129,950

Answer: 129,950 toys

14. At a concert, there were 8 sections of seats. Each section had 9,875 seats. If 4,326 seats were empty, how many people attended the concert? (3 marks)

Working:

Step 1: Total seats = 8 × 9,875 = 79,000
Step 2: People attended = 79,000 - 4,326 = 74,674

Answer: 74,674 people

---

Marking Scheme Summary

Section	Total Marks	Question Types
A (MCQ)	10 marks	5 questions × 2 marks each
B (Short Answer)	15 marks	5 questions × 3 marks each
C (Word Problems)	15 marks	4 questions (4+4+4+3 marks)
Total	40 marks	20 questions

Grade Boundaries:

• A: 36-40 marks (90-100%)
• B: 32-35 marks (80-89%)
• C: 28-31 marks (70-79%)
• D: 24-27 marks (60-69%)

---

Key Learning Objectives Tested:

1. Place value understanding up to 100,000
2. Comparing and ordering 5-digit numbers
3. Rounding to nearest thousand
4. Number patterns and sequences
5. Addition and subtraction with regrouping
6. Multi-step word problems
7. Real-world applications of whole numbers