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Primary 5 Mathematics Semestral Assessment 2 (End of Year) Paper 5

Free P5 Maths SA2 Paper 5, HY3 Exam version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Questions

TuitionGoWhere Exam Practice (AI) - Mathematics Primary 5

SA2 Practice Paper (Version 5 of 5)

School: TuitionGoWhere Exam Practice (AI)
Subject: Mathematics
Level: Primary 5
Paper: SA2 Practice (Whole Numbers Focus)
Duration: 60 minutes
Total Marks: 50
Name: ________________________
Class: ________
Date: ____________

Instructions:

This paper contains 20 questions on Whole Numbers (numbers up to 10 million).
Write your answers in the spaces provided.
Show your working clearly where required.
Calculators are not allowed.

Section A (Questions 1–10) — 20 marks

(2 marks each)

1. Write the number 4 205 318 in words.

2. What is the value of the digit 7 in the number 7 632 045?

3. Round 3 849 572 to the nearest hundred thousand.

4. Write nine million sixty thousand four hundred in numerals.

5. What is the place value of the digit 2 in 5 124 890?

6. Arrange these numbers from smallest to largest:
8 431 200, 8 134 200, 8 413 020, 8 314 200

7. The population of a town is 1 250 000. What is this number rounded to the nearest million?

8. Which digit is in the hundred thousands place in 6 473 219?

9. Write 2 000 000 + 300 000 + 40 000 + 5 000 + 200 + 9 as a single number.

10. A factory produced 3 478 615 toys. What is this number to the nearest ten thousand?

Section B (Questions 11–15) — 15 marks

(3 marks each)

11. A country has 12 345 678 people. Write the number in words and state the value of the digit 3.

12. Round 9 765 432 to (a) the nearest million, (b) the nearest thousand.
(a) ____________________ (b) ____________________

13. The number 4 0_2 789 has a missing digit. The number is between 4 000 000 and 4 100 000 and rounds to 4 000 000 to the nearest hundred thousand. What is the greatest possible digit that can go in the box?

14. A library has 2 345 678 books. A school has 2 354 876 books. Which has more books? By how many?

15. Write the number 6 070 503 in expanded form (as a sum of digit values).

Section C (Questions 16–20) — 15 marks

(3 marks each)

16. A company earned $8 765 432 last year and$ 9 123 004 this year. How much more did it earn this year?

17. The total number of students in 5 schools is 2 450 000. If each school has about the same number, estimate the number in one school to the nearest ten thousand.

18. A number is made of 5 millions, 0 hundred thousands, 3 ten thousands, 0 thousands, 7 hundreds, 0 tens, and 4 ones. Write the number in numerals and in words.

19. The table below shows the number of visitors to four museums.

Museum	Visitors
A	1 234 567
B	1 243 657
C	1 232 476
D	1 324 567

Which museum had the most visitors? Round that number to the nearest hundred thousand.

20. A farmer has 3 750 000 chickens. He sells 1 248 315 of them. How many does he have left? Round your answer to the nearest hundred thousand.

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Answers

TuitionGoWhere Exam Practice (AI) — Mathematics Primary 5 SA2 Practice (Version 5)

Answer Key with Teaching Notes

Total Marks: 50

Section A (20 marks)

Q1 (2 marks)
Answer: Four million two hundred five thousand three hundred eighteen.
Teaching: Read from left: 4 (millions) → "four million"; 205 (thousands) → "two hundred five thousand"; 318 → "three hundred eighteen". No "and" used in Singapore standard.
Marking: 1 mark for correct millions/thousands, 1 mark for correct rest.

Q2 (2 marks)
Answer: 7 000 000 (seven million).
Teaching: Digit 7 is in the millions place (leftmost). Its value = 7 × 1 000 000.
Marking: 1 mark place identified, 1 mark value.

Q3 (2 marks)
Answer: 3 800 000.
Teaching: Hundred thousand digit is 8; next digit 4 (<5) so round down. 3 849 572 → 3 800 000.
Common mistake: rounding to 3 900 000 (wrong next digit).

Q4 (2 marks)
Answer: 9 060 400.
Teaching: nine million = 9 000 000; sixty thousand = 060 000; four hundred = 400. Combine: 9 060 400.

Q5 (2 marks)
Answer: Ten thousands.
Teaching: From right: ones, tens, hundreds, thousands, ten thousands (digit 2).

Q6 (2 marks)
Answer: 8 134 200, 8 314 200, 8 413 020, 8 431 200.
Teaching: Compare digit by digit from millions (all 8), hundred thousands: 1 < 3 < 4. Then within 8 4xx: 13 020 < 31 200.

Q7 (2 marks)
Answer: 1 000 000.
Teaching: 1 250 000 → hundred thousands digit 2 (<5) round down to 1 million.

Q8 (2 marks)
Answer: 4.
Teaching: Places: 6(mil) 4(hth) 7(tth) 3(th) 2(h) 1(t) 9(o). Hundred thousands = 4.

Q9 (2 marks)
Answer: 2 345 209.
Teaching: Add: 2 000 000 + 300 000 = 2 300 000; +40 000 = 2 340 000; +5 000 = 2 345 000; +200 = 2 345 200; +9 = 2 345 209.

Q10 (2 marks)
Answer: 3 480 000.
Teaching: Ten thousand digit 7, next 6 (≥5) round up: 3 478 615 → 3 480 000.

Section B (15 marks)

Q11 (3 marks)
Answer: Twelve million three hundred forty-five thousand six hundred seventy-eight; digit 3 value = 300 000.
Working: 12,345,678 → millions: twelve million; 345 thousand; 678. Digit 3 is hundred thousands → 3×100 000.
Marking: 1 word form, 1 place, 1 value.

Q12 (3 marks)
(a) 10 000 000 (b) 9 765 000.
Teaching: (a) million digit 9, next 7 → round up to 10 mil. (b) thousand digit 5, next 4 → round down.
Marking: 1.5 each.

Q13 (3 marks)
Answer: 4.
Working: Number 4 0d2 789. To round to 4 000 000 (nearest 100k), ten-thousands digit d must be ≤4. Greatest d = 4. Check: 4 042 789 → 4 000 000.
Marking: 1 reason, 2 answer.

Q14 (3 marks)
Answer: School has more by 9 198.
Working: 2 354 876 − 2 345 678 = 9 198.
Marking: 1 compare, 2 subtraction.

Q15 (3 marks)
Answer: 6 000 000 + 70 000 + 500 + 3.
Teaching: 6 mil, 0 hth, 7 tth, 0 th, 5 h, 0 t, 3 o.
Marking: 1 each for three non-zero parts.

Section C (15 marks)

Q16 (3 marks)
Answer: $357 572.
Working: 9 123 004 − 8 765 432 = 357 572.
Marking: 2 subtraction, 1 answer.

Q17 (3 marks)
Answer: 490 000.
Working: 2 450 000 ÷ 5 = 490 000 exactly. Nearest ten thousand = 490 000.
Marking: 2 divide, 1 round.

Q18 (3 marks)
Answer: 5 030 704; five million thirty thousand seven hundred four.
Working: 5 mil, 0 hth, 3 tth, 0 th, 7 h, 0 t, 4 o → 5 030 704.
Marking: 1 numeral, 2 words.

Q19 (3 marks)
Answer: Museum D; 1 300 000.
Working: Compare: D=1 324 567 largest. Round to nearest 100k: ten-thousands 2, next 4 → down to 1 300 000.
Marking: 1 largest, 2 round.

Q20 (3 marks)
Answer: 2 501 685 left; rounded 2 500 000.
Working: 3 750 000 − 1 248 315 = 2 501 685. Nearest 100k: ten-thousands 0, next 1 → down to 2 500 000.
Marking: 2 subtract, 1 round.