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Primary 1 Mathematics Practice Paper 4
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Questions
TuitionGoWhere Practice Paper - Mathematics Primary 1
TuitionGoWhere Practice Paper (AI) — Version 4
Subject: Mathematics
Level: Primary 1
Paper: Practice Paper — Numbers (up to 100)
Duration: 45 minutes
Total Marks: 40
Name: ___________________________
Class: Primary 1 _______
Date: _______________
Instructions to Candidates
- Do not open this booklet until you are told to do so.
- Follow all instructions carefully.
- Answer all questions.
- Write your answers in the spaces provided.
- The number of marks is given in brackets [ ] at the end of each question or part question.
- The total marks for this paper is 40.
Section A: Multiple Choice Questions (10 marks)
Questions 1 to 10 carry 1 mark each. Choose the correct answer and write its number (1, 2, 3 or 4) in the brackets provided.
1. Count the apples shown below. How many apples are there altogether?
<image_placeholder> id: Q1-fig1 type: diagram linked_question: Q1 description: A group of apples arranged in two rows. Top row: 6 apples. Bottom row: 5 apples. All apples are identical in size and evenly spaced. labels: None values: Top row = 6, Bottom row = 5 must_show: 11 distinct apples in two rows </image_placeholder>
(1) 10
(2) 11
(3) 12
(4) 13
Answer: (_____) [1]
2. What is the value of the digit 5 in the number 58?
(1) 5
(2) 8
(3) 50
(4) 58
Answer: (_____) [1]
3. Which of the following numbers is the smallest?
(1) 42
(2) 24
(3) 34
(4) 43
Answer: (_____) [1]
4. Look at the number pattern below. What is the missing number?
12, 14, 16, ___, 20, 22
(1) 17
(2) 18
(3) 19
(4) 21
Answer: (_____) [1]
5. Which number comes just before 50?
(1) 48
(2) 49
(3) 51
(4) 52
Answer: (_____) [1]
6. There are 36 stickers in a packet. Ali buys 2 packets. How many stickers does Ali have altogether?
(1) 38
(2) 62
(3) 72
(4) 78
Answer: (_____) [1]
7. Which of the following shows 4 tens and 7 ones?
(1) 47
(2) 74
(3) 407
(4) 470
Answer: (_____) [1]
8. Arrange the numbers below from the smallest to the greatest.
63, 36, 66, 33
(1) 33, 36, 63, 66
(2) 33, 63, 36, 66
(3) 36, 33, 63, 66
(4) 66, 63, 36, 33
Answer: (_____) [1]
9. What is the missing number in the box?
□ + 25 = 40
(1) 15
(2) 25
(3) 35
(4) 65
Answer: (_____) [1]
10. Mei Ling has 45 beads. She gives 12 beads to her sister. How many beads does Mei Ling have left?
(1) 33
(2) 37
(3) 53
(4) 57
Answer: (_____) [1]
Section B: Short Answer Questions (18 marks)
Questions 11 to 18 carry 2 marks each. Show your working clearly in the space provided.
11. Write seventy-three in numerals.
______________________________________________________ [2]
12. Count the stars below. How many stars are there?
<image_placeholder> id: Q12-fig1 type: diagram linked_question: Q12 description: Stars arranged in 4 rows of 5 stars each (a 4×5 array). All stars are identical and evenly spaced. labels: None values: 4 rows × 5 stars per row = 20 stars must_show: 20 stars in a clear 4 by 5 rectangular array </image_placeholder>
______________________________________________________ [2]
13. Fill in the blanks.
(a) In the number 82, the digit 8 is in the _______________ place.
(b) Its value is _______________.
______________________________________________________ [2]
14. Compare the two numbers. Write >, < or = in the box.
54 □ 45
______________________________________________________ [2]
15. Complete the number pattern.
80, 75, 70, ___, ___, 55
______________________________________________________ [2]
16. Look at the picture below.
<image_placeholder> id: Q16-fig1 type: diagram linked_question: Q16 description: Two groups of pencils. Group A: 8 pencils bundled together with a rubber band (labelled "Group A"). Group B: 5 loose pencils (labelled "Group B"). labels: Group A, Group B values: Group A = 8 pencils, Group B = 5 pencils must_show: Two distinct groups with clear labels and countable pencils </image_placeholder>
How many more pencils are there in Group A than in Group B?
______________________________________________________ [2]
17. A number has 6 tens and 9 ones. What is the number?
______________________________________________________ [2]
18. There are 28 children in a class. 15 of them are boys. How many girls are there in the class?
______________________________________________________ [2]
Section C: Word Problems (12 marks)
Questions 19 to 20 carry 6 marks each. Read each problem carefully. Show your working clearly and write your final answer in the space provided.
19. Mrs Tan baked 34 chocolate cupcakes and 26 vanilla cupcakes.
(a) How many cupcakes did Mrs Tan bake altogether?
(b) She sold 18 cupcakes. How many cupcakes were left?
______________________________________________________ [6]
20. There are 4 boxes of crayons. Each box has 10 crayons.
(a) How many crayons are there in all 4 boxes?
(b) If 12 crayons are broken, how many crayons are not broken?
______________________________________________________ [6]
END OF PAPER
Answers
TuitionGoWhere Practice Paper - Mathematics Primary 1 (Answer Key)
Subject: Mathematics
Level: Primary 1
Paper: Practice Paper — Numbers (up to 100) — Version 4
Total Marks: 40
Section A: Multiple Choice Questions (10 marks)
1. Answer: (2) 11
Working: Count the apples: 6 (top row) + 5 (bottom row) = 11 apples.
Concept: Counting objects in groups.
Common mistake: Miscounting by 1 (e.g., counting 10 or 12). Encourage touching each object while counting.
2. Answer: (3) 50
Working: In 58, the digit 5 is in the tens place. Value = 5 × 10 = 50.
Concept: Place value — the position of a digit determines its value. Tens place means groups of ten.
Common mistake: Choosing (1) 5 (confusing digit with value) or (2) 8 (reading the ones digit).
3. Answer: (2) 24
Working: Compare tens digits first: 24 has 2 tens; 42, 34, 43 have 3 or 4 tens. 2 tens is the smallest.
Concept: Compare numbers by place value starting from the left (tens, then ones).
Common mistake: Looking only at the ones digit (e.g., choosing 34 because 4 < 2 is false logic).
4. Answer: (2) 18
Working: Pattern increases by 2 each time: 12 (+2) → 14 (+2) → 16 (+2) → 18 (+2) → 20 (+2) → 22.
Concept: Number patterns — identify the rule (add 2) and apply it.
Common mistake: Guessing 17 or 19 (adding 1 or 3 instead of 2).
5. Answer: (2) 49
Working: The number just before 50 is one less: 50 − 1 = 49.
Concept: Number sequence — "before" means subtract 1; "after" means add 1.
Common mistake: Choosing 48 (subtracting 2) or 51 (adding 1 instead of subtracting).
6. Answer: (3) 72
Working: 2 packets × 36 stickers = 36 + 36 = 72. Or: 30×2 = 60, 6×2 = 12, 60+12 = 72.
Concept: Multiplication as repeated addition (2 groups of 36).
Common mistake: Adding 36 + 2 = 38 (option 1) or miscalculating 36+36.
7. Answer: (1) 47
Working: 4 tens = 40, 7 ones = 7 → 40 + 7 = 47.
Concept: Place value composition — tens and ones combine to form the number.
Common mistake: Choosing (2) 74 (reversing digits) or (3) 407 (misunderstanding place value).
8. Answer: (1) 33, 36, 63, 66
Working: Compare tens: 33 and 36 have 3 tens; 63 and 66 have 6 tens. Among 3-tens: 33 < 36. Among 6-tens: 63 < 66. Order: 33, 36, 63, 66.
Concept: Ordering numbers — compare tens first, then ones.
Common mistake: Ordering by ones digit only (e.g., 36, 33, 66, 63).
9. Answer: (1) 15
Working: □ = 40 − 25 = 15. Check: 15 + 25 = 40 ✓
Concept: Inverse relationship between addition and subtraction.
Common mistake: Adding 40 + 25 = 65 (option 4) instead of subtracting.
10. Answer: (1) 33
Working: 45 − 12 = 33. (45 − 10 = 35, 35 − 2 = 33)
Concept: Subtraction as "taking away" or finding the difference.
Common mistake: Adding 45 + 12 = 57 (option 4) or subtracting incorrectly (e.g., 45 − 12 = 37).
Section B: Short Answer Questions (18 marks)
11. Answer: 73
Working: "Seventy" = 70, "three" = 3 → 70 + 3 = 73.
Marks: 1 mark for correct numeral "73", 1 mark for correct spelling/formation (no reversal like 37).
Concept: Reading and writing number words to numerals.
Teaching note: Hyphen in "seventy-three" separates tens and ones words.
12. Answer: 20 stars
Working: Count by rows: 5 + 5 + 5 + 5 = 20. Or: 4 rows × 5 stars = 20.
Marks: 1 mark for correct count (20), 1 mark for showing a counting strategy (grouping/skip counting).
Concept: Counting in arrays — foundation for multiplication.
Common mistake: Miscounting by 1 or 2. Encourage systematic counting (row by row).
13. (a) tens
(b) 80
Working: In 82, digit 8 is in the tens place. Its value = 8 × 10 = 80.
Marks: 1 mark each for (a) and (b).
Concept: Place value identification and value calculation.
Common mistake: Writing "8" for (b) (confusing digit with value). Emphasise: "value means how much it is worth".
14. Answer: >
Working: 54 has 5 tens; 45 has 4 tens. 5 tens > 4 tens, so 54 > 45.
Marks: 1 mark for correct symbol, 1 mark for correct reasoning (comparing tens).
Concept: Comparing numbers using >, <, =. Always start from the highest place value.
Teaching note: The "mouth" of the symbol opens to the bigger number.
15. Answer: 65, 60
Working: Pattern decreases by 5 each time: 80 (−5) → 75 (−5) → 70 (−5) → 65 (−5) → 60 (−5) → 55.
Marks: 1 mark for each correct missing number (65 and 60).
Concept: Decreasing number patterns — identify the subtraction rule.
Common mistake: Subtracting by 10 (giving 60, 50) or by 1 (giving 69, 68).
16. Answer: 3 more pencils
Working: Group A has 8, Group B has 5. Difference = 8 − 5 = 3.
Marks: 1 mark for correct subtraction (8−5), 1 mark for correct answer with unit ("3 more pencils" or "3").
Concept: Comparison subtraction — "how many more" means subtract the smaller from the larger.
Common mistake: Adding 8 + 5 = 13 (finding total instead of difference).
17. Answer: 69
Working: 6 tens = 60, 9 ones = 9 → 60 + 9 = 69.
Marks: 1 mark for correct composition (60+9), 1 mark for final answer 69.
Concept: Building numbers from place value parts.
Teaching note: "6 tens 9 ones" is the expanded form of 69.
18. Answer: 13 girls
Working: Total children = 28, Boys = 15. Girls = 28 − 15 = 13. Check: 15 + 13 = 28 ✓
Marks: 1 mark for correct operation (subtraction), 1 mark for correct answer with unit ("13 girls").
Concept: Part-whole subtraction — total = part 1 + part 2, so part 2 = total − part 1.
Common mistake: Adding 28 + 15 = 43.
Section C: Word Problems (12 marks)
19. (a) 60 cupcakes
(b) 42 cupcakes
Working for (a):
Chocolate cupcakes = 34
Vanilla cupcakes = 26
Total = 34 + 26 = 60
Method: 30 + 20 = 50, 4 + 6 = 10, 50 + 10 = 60.
Working for (b):
Total baked = 60
Sold = 18
Left = 60 − 18 = 42
Method: 60 − 10 = 50, 50 − 8 = 42.
Marks breakdown (6 marks total):
- (a) 2 marks: 1 mark for correct addition setup (34+26), 1 mark for correct answer (60).
- (b) 4 marks: 1 mark for using answer from (a) (60), 1 mark for correct subtraction setup (60−18), 1 mark for correct working steps, 1 mark for final answer (42 cupcakes).
Concept: Two-step word problem — first find total (addition), then find remainder (subtraction).
Common mistake: In (b), subtracting from 34 or 26 instead of the total 60.
Teaching note: Always re-read the question to identify which number to use for the second step.
20. (a) 40 crayons
(b) 28 crayons
Working for (a):
4 boxes × 10 crayons = 10 + 10 + 10 + 10 = 40
Or: 4 × 10 = 40
Working for (b):
Total crayons = 40
Broken = 12
Not broken = 40 − 12 = 28
Method: 40 − 10 = 30, 30 − 2 = 28.
Marks breakdown (6 marks total):
- (a) 2 marks: 1 mark for correct multiplication/repeated addition (4×10 or 10+10+10+10), 1 mark for correct answer (40).
- (b) 4 marks: 1 mark for using answer from (a) (40), 1 mark for correct subtraction setup (40−12), 1 mark for correct working steps, 1 mark for final answer (28 crayons).
Concept: Multiplication as equal groups (4 groups of 10), followed by subtraction.
Common mistake: In (a), adding 4 + 10 = 14 instead of multiplying. In (b), adding 40 + 12 = 52.
Teaching note: "Each box has 10" signals equal groups → multiplication. "Broken" means taken away → subtraction.
END OF ANSWER KEY