AI Generated Quiz
Primary 1 Mathematics Addition Subtraction Quiz
Free P1 Maths Addition Subtraction quiz, HY3 AI version, with questions, answers, and syllabus-aligned practice for Singapore students.
These static practice materials are generated from the site's syllabus and paper-generation workflow, with source and model context shown so students and parents can evaluate the material before use.
Questions
Primary 1 Mathematics Quiz - Addition Subtraction
Name: ___________________________
Class: ___________________________
Date: ___________________________
Score: _______ / 20
Duration: 40 minutes
Total Marks: 20
Instructions:
- This quiz has 20 questions on Addition and Subtraction.
- Write your answers in the spaces provided.
- Do your working clearly if needed.
- This quiz is generated from syllabus-first practice templates. It is not based on past-year exam papers.
Section A: Basic Addition and Subtraction (Questions 1–8)
(1 mark each)
1. 7+5= ______
2. 13−4= ______
3. 9+8= ______
4. 15−7= ______
5. 6+6+4= ______
6. 20−9= ______
7. 11+3= ______
8. 18−10= ______
Section B: Addition and Subtraction Within 100 (Questions 9–14)
(1–2 marks each)
9. 34+12= ______ (1 mark)
10. 58−23= ______ (1 mark)
11. 45+30= ______ (1 mark)
12. 72−40= ______ (1 mark)
13. 63+25= ______ (2 marks)
14. 81−37= ______ (2 marks)
Section C: Word Problems (Questions 15–20)
(2–3 marks each)
15. Siti has 12 stickers. She buys 7 more stickers. How many stickers does Siti have altogether? (2 marks)
Answer: ______
16. Ahmad has 45 marbles. Raj has 28 marbles. How many more marbles does Ahmad have than Raj? (2 marks)
Answer: ______
17. Mei Ling had 60 stickers. She gave 15 stickers to her friend and bought 20 more stickers. How many stickers does Mei Ling have now? (3 marks)
Answer: ______
18. There are 25 boys and 18 girls in a class. How many children are there altogether? (2 marks)
Answer: ______
19. A shop sold 36 red balloons and 19 blue balloons. How many fewer blue balloons than red balloons were sold? (2 marks)
Answer: ______
20. Ravi had 50 cents. He spent 23 cents on a pencil. How many cents does he have left? (3 marks)
Answer: ______
Answers
Primary 1 Mathematics Quiz - Addition Subtraction (Answer Key)
Topic: Addition and Subtraction
Level: Primary 1
Total Marks: 20
Note: This is syllabus-first practice content. Not derived from past-year exams.
Section A: Basic Addition and Subtraction (Q1–8)
Q1. 7+5=12
Marks: 1
Teaching note: Start at 7, count on 5: 8, 9, 10, 11, 12. Addition means putting together.
Q2. 13−4=9
Marks: 1
Teaching note: Subtraction is taking away. From 13, count back 4: 12, 11, 10, 9.
Q3. 9+8=17
Marks: 1
Teaching note: Count on from 9: 10, 11, 12, 13, 14, 15, 16, 17.
Q4. 15−7=8
Marks: 1
Teaching note: Take away 7 from 15 by counting back: 14, 13, 12, 11, 10, 9, 8.
Q5. 6+6+4=16
Marks: 1
Teaching note: Add in order: 6+6=12, then 12+4=16. Adding more than two numbers.
Q6. 20−9=11
Marks: 1
Teaching note: Count back 9 from 20: 19, 18, 17, 16, 15, 14, 13, 12, 11.
Q7. 11+3=14
Marks: 1
Teaching note: Add ones to a 2-digit number: 11 and 3 more is 14.
Q8. 18−10=8
Marks: 1
Teaching note: Subtract tens: 18 take away 10 leaves 8.
Section B: Addition and Subtraction Within 100 (Q9–14)
Q9. 34+12=46
Marks: 1
Teaching note: Add tens (30+10=40) and ones (4+2=6), so 46.
Q10. 58−23=35
Marks: 1
Teaching note: Subtract tens (50-20=30) and ones (8-3=5), so 35.
Q11. 45+30=75
Marks: 1
Teaching note: Add tens to a 2-digit number: 40+30=70, plus 5 = 75.
Q12. 72−40=32
Marks: 1
Teaching note: Subtract tens: 70-40=30, plus 2 = 32.
Q13. 63+25=88
Marks: 2
Working:
- Tens: 60+20=80
- Ones: 3+5=8
- Total: 80+8=88
Teaching note: No regrouping needed. Show both place-value steps for full marks.
Q14. 81−37=44
Marks: 2
Working:
- Ones: 1 cannot take 7, so borrow 1 ten → 11 - 7 = 4
- Tens: 7 - 3 = 4
- Answer: 44
Teaching note: Renaming (regrouping) is allowed in P1 subtraction within 100. Common mistake: 81-37 = 56 (forgetting to reduce tens).
Section C: Word Problems (Q15–20)
Q15. 19 stickers
Marks: 2
Working: 12+7=19
Marking: 1 mark for correct number sentence, 1 mark for correct answer.
Teaching note: "Buys more" and "altogether" tell us to add.
Q16. 17 marbles
Marks: 2
Working: 45−28=17
Marking: 1 mark for correct subtraction, 1 mark for answer.
Teaching note: "How many more" means find the difference by subtracting smaller from larger.
Q17. 65 stickers
Marks: 3
Working:
- Step 1: 60−15=45 (gave away)
- Step 2: 45+20=65 (bought more)
Marking: 1 mark each step, 1 mark final answer.
Teaching note: Do operations in story order. Two-step problem.
Q18. 43 children
Marks: 2
Working: 25+18=43
Marking: 1 mark sentence, 1 mark answer.
Teaching note: "Altogether" → add boys and girls.
Q19. 17 balloons
Marks: 2
Working: 36−19=17
Marking: 1 mark sentence, 1 mark answer.
Teaching note: "Fewer than" → compare by subtraction.
Q20. 27 cents
Marks: 3
Working:
- Start: 50 cents
- Spent: 23 cents
- Left: 50−23=27 cents
Marking: 1 mark for sentence, 1 mark method, 1 mark answer with unit.
Teaching note: Money context; always write unit "cents".
Free quiz and exam paper access
Enter your details to view this paper
Your access is remembered on this device.