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Primary 2 Mathematics Numbers Quiz

Free P2 Maths Numbers quiz, HY3 AI version, with questions, answers, and syllabus-aligned practice for Singapore students.

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Primary 2 Mathematics AI Generated Generated by Tencent HY3 Free Updated 2026-08-17

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Answers

Primary 2 Mathematics Quiz - Numbers (Answer Key)

Version: 1 of 5
Total Marks: 20


Section A: Place Value and Number Forms

1. 600
Marks: 1
Teaching note: In 648, the 6 is in the hundreds place, so its value is 6 × 100 = 600. Common mistake: writing "6" instead of the value.

2. 7
Marks: 1
Teaching note: 473 = 4 hundreds, 7 tens, 3 ones. The tens digit is 7.

3. 300 + 0 + 5
Marks: 1
Teaching note: 305 means 3 hundreds (300), 0 tens (0), 5 ones (5). Expanded form shows each place value.

4. 782
Marks: 1
Teaching note: "Seven hundred" = 700, "eighty" = 80, "two" = 2. 700 + 80 + 2 = 782.

5. Hundreds
Marks: 1
Teaching note: 905 has 9 in the hundreds place, 0 tens, 5 ones. Place value of 9 is hundreds.


Section B: Comparing, Ordering, and Patterns

6. 249, 294, 429, 492
Marks: 1
Teaching note: Compare hundreds first: 2 < 4. Among 2xx: 249 < 294 (tens 4 < 9). Among 4xx: 429 < 492.

7. <
Marks: 1
Teaching note: 356 has 5 tens, 365 has 6 tens, so 356 is smaller. Use "<" (less than).

8. 300, 350
Marks: 2 (1 each)
Teaching note: Pattern adds 50 each time. 250 + 50 = 300, 300 + 50 = 350.

9. 500, 400
Marks: 2 (1 each)
Teaching note: Counting backward by 100: 600 − 100 = 500, 500 − 100 = 400.

10. 120
Marks: 1
Teaching note: Pattern adds 5: 115 + 5 = 120, then 120 + 5 = 125.


Section C: Odd and Even Numbers

11. 448, 690
Marks: 1 (both needed)
Teaching note: Even numbers end in 0,2,4,6,8. 448 ends in 8; 690 ends in 0.

12. Odd
Marks: 1
Teaching note: 375 ends in 5, which is not even, so it is odd.

13. 421
Marks: 1
Teaching note: Odd numbers are 1,3,5,7,9 at end. After 419 comes 421.

14. 502
Marks: 1
Teaching note: 502 ends in 2 → even. Others end in 3,5,7 → odd.

15. True
Marks: 1
Teaching note: 640 ends in 0, so it is even. Statement is true.


Section D: Mixed Number Problems

16. 408
Marks: 2
Working: 245 + 163
= 200+100=300, 40+60=100, 5+3=8 → 300+100+8 = 408.
Teaching note: Add ones, tens, hundreds. Alt: 245+163 = 408.

17. 235
Marks: 2
Working: 520 − 285
520 − 200 = 320; 320 − 80 = 240; 240 − 5 = 235.
Teaching note: Subtract stepwise or use column: 520−285=235.

18. 345
Marks: 2
Working: Start 300. +120 = 420. −75 = 345.
Teaching note: 300+120=420; 420−75: 420−70=350, 350−5=345.

19. 7 hundreds, 3 tens, 6 ones
Marks: 1
Teaching note: 736 = 7×100 + 3×10 + 6×1.

20. 896
Marks: 1
Teaching note: Compare hundreds: 8xx biggest. Among 869 and 896, tens 9 > 6, so 896.