{ "paper": { "school": "Henry Park", "year": 2023, "level": "P3", "label": "End of Year Exam", "source_prefix": "Henry Park 2023 P3 End of Year Exam", "has_answer_key": true }, "questions": [ { "n": 1, "type_id": 1, "question": "Write nine thousand, two hundred and five in numbers.", "answer0": "925", "answer1": "9025", "answer2": "9205", "answer3": "9250", "correct_answer": 2, "skill_id": 67, "difficulty_id": 1, "explanation": "Nine thousand, two hundred and five = 9000 + 200 + 5 = 9205.", "hints": ["9 thousands, 2 hundreds, 0 tens, 5 ones.", "Fill any empty place value with 0."], "source": "Henry Park 2023 P3 End of Year Exam Q1", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=3 (option (3) 9205), 0-based index 2." }, { "n": 2, "type_id": 1, "question": "In 7509, the digit 0 is in the [?] place.", "answer0": "ones", "answer1": "tens", "answer2": "hundreds", "answer3": "thousands", "correct_answer": 1, "skill_id": 66, "difficulty_id": 1, "explanation": "In 7509: 7 thousands, 5 hundreds, 0 tens, 9 ones. The 0 is in the tens place.", "hints": ["Read place values from right: ones, tens, hundreds, thousands.", "The second digit from the right is the tens place."], "source": "Henry Park 2023 P3 End of Year Exam Q2", "image_needed": false, "image_options": false, "image_file": null, "notes": "Word options -> MCQ. Key=2 (tens), 0-based index 1. Blank kept in stem as [?] for the fill word but rendered as MCQ." }, { "n": 3, "type_id": 1, "question": "3/4 = 9/[?]\nWhat is the missing denominator?", "answer0": "8", "answer1": "10", "answer2": "12", "answer3": "16", "correct_answer": 2, "skill_id": 80, "difficulty_id": 2, "explanation": "3/4 = 9/? means numerator x3 (3->9), so denominator x3: 4x3 = 12.", "hints": ["What times 3 gives 9? Numerator multiplied by 3.", "Multiply the denominator by the same number: 4 x 3."], "source": "Henry Park 2023 P3 End of Year Exam Q3", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=3 (option (3) 12), 0-based index 2." }, { "n": 4, "type_id": 1, "question": "Which one of the following is the same as 5050 g?", "answer0": "5 kg 5 g", "answer1": "5 kg 50 g", "answer2": "5 kg 500 g", "answer3": "50 kg 50 g", "correct_answer": 1, "skill_id": 86, "difficulty_id": 2, "explanation": "1 kg = 1000 g. 5050 g = 5000 g + 50 g = 5 kg 50 g.", "hints": ["1 kg = 1000 g.", "5050 g = 5 kg and the remaining 50 g."], "source": "Henry Park 2023 P3 End of Year Exam Q4", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=2 (option (2) 5 kg 50 g), 0-based index 1." }, { "n": 5, "type_id": 1, "question": "Mrs Veerasamy brought her children to the swimming pool. They started swimming at 4:40 pm. They finished swimming at 6:05 pm. How long did they swim in the pool?", "answer0": "1 h 25 min", "answer1": "1 h 35 min", "answer2": "2 h 25 min", "answer3": "2 h 35 min", "correct_answer": 0, "skill_id": 92, "difficulty_id": 2, "explanation": "4:40 pm to 5:40 pm = 1 h. 5:40 pm to 6:05 pm = 25 min. Total = 1 h 25 min.", "hints": ["Count whole hours first: 4:40 to 5:40 is 1 hour.", "Then count the extra minutes to 6:05."], "source": "Henry Park 2023 P3 End of Year Exam Q5", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=1 (option (1) 1 h 25 min), 0-based index 0." }, { "n": 6, "type_id": 1, "question": "In 6308, the digit 3 stands for [?].", "answer0": "3", "answer1": "30", "answer2": "300", "answer3": "3000", "correct_answer": 2, "skill_id": 66, "difficulty_id": 1, "explanation": "In 6308 the digit 3 is in the hundreds place, so it stands for 300.", "hints": ["Find the place value of 3: 6 thousands, 3 hundreds, 0 tens, 8 ones.", "The hundreds digit stands for that digit x 100."], "source": "Henry Park 2023 P3 End of Year Exam Q6", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=3 (option (3) 300), 0-based index 2." }, { "n": 7, "type_id": 1, "question": "The difference between two numbers is 168. The smaller number is 709. What is the greater number?", "answer0": "541", "answer1": "661", "answer2": "867", "answer3": "877", "correct_answer": 3, "skill_id": 71, "difficulty_id": 2, "explanation": "Greater number = smaller + difference = 709 + 168 = 877.", "hints": ["Greater = smaller number + difference.", "709 + 168 = ?"], "source": "Henry Park 2023 P3 End of Year Exam Q7", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=4 (option (4) 877), 0-based index 3." }, { "n": 8, "type_id": 1, "question": "[?] + 1/3 = 8/9\nWhat is the missing fraction in the box?", "answer0": "3/9", "answer1": "5/9", "answer2": "6/9", "answer3": "7/9", "correct_answer": 1, "skill_id": 81, "difficulty_id": 2, "explanation": "1/3 = 3/9. Missing = 8/9 - 3/9 = 5/9.", "hints": ["Make 1/3 into ninths: 1/3 = 3/9.", "8/9 minus 3/9 = ?"], "source": "Henry Park 2023 P3 End of Year Exam Q8", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=2 (option (2) 5/9), 0-based index 1." }, { "n": 9, "type_id": 2, "question": "Ahmad drew a figure in a square grid. How many pairs of parallel lines are there in the figure?", "answer0": "2", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 100, "difficulty_id": 2, "explanation": "Counting the pairs of parallel line segments in the figure drawn on the grid gives 2 pairs.", "hints": ["Parallel lines run in the same direction and never meet.", "Look for matching pairs of slanted and straight segments."], "source": "Henry Park 2023 P3 End of Year Exam Q9", "image_needed": true, "image_page": 6, "image_loc": "left side, below the question: a square grid with a triangle drawn on it", "image_options": false, "image_file": "q9.png", "notes": "Key=2." }, { "n": 10, "type_id": 2, "question": "Arrange the following numbers in order. Begin with the greatest number.\n6900, 9060, 6090, 6009", "answer0": "9060", "answer1": "6900", "answer2": "6090", "answer3": "6009", "correct_answer": null, "skill_id": 68, "difficulty_id": 2, "explanation": "Greatest to smallest: 9060, 6900, 6090, 6009.", "hints": ["Compare the thousands digit first: 9060 has 9 thousands.", "Then compare hundreds, tens and ones for the rest."], "source": "Henry Park 2023 P3 End of Year Exam Q10", "image_needed": false, "image_options": false, "image_file": null, "notes": "Ordering task -> FIB, one blank per position (greatest first). Key=9060, 6900, 6090, 6009." }, { "n": 11, "type_id": 2, "question": "9458 = [?] + 400 + 58\nWhat is the missing number?", "answer0": "9000", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 66, "difficulty_id": 2, "explanation": "9458 - 400 - 58 = 9000. So the missing number is 9000.", "hints": ["400 + 58 = 458.", "9458 - 458 = ?"], "source": "Henry Park 2023 P3 End of Year Exam Q11", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=9000." }, { "n": 12, "type_id": 2, "question": "What is the remainder when 899 is divided by 6?", "answer0": "5", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 74, "difficulty_id": 2, "explanation": "899 / 6 = 149 remainder 5 (6 x 149 = 894, 899 - 894 = 5).", "hints": ["Find the largest multiple of 6 not exceeding 899.", "6 x 149 = 894; subtract from 899."], "source": "Henry Park 2023 P3 End of Year Exam Q12", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=5." }, { "n": 13, "type_id": 2, "question": "Find the difference between 9000 and 5826.", "answer0": "3174", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 70, "difficulty_id": 2, "explanation": "9000 - 5826 = 3174.", "hints": ["Difference means subtract the smaller from the larger.", "9000 - 5826 = ?"], "source": "Henry Park 2023 P3 End of Year Exam Q13", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=3174." }, { "n": 14, "type_id": 2, "question": "Mrs Rebecca spent 1 h 10 min baking cookies. She finished baking at 2:30 pm. What time did she start baking?", "answer0": "1.20", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 92, "difficulty_id": 2, "explanation": "Start = finish - duration = 2:30 pm - 1 h 10 min = 1:20 pm.", "hints": ["Subtract 1 hour first: 2:30 -> 1:30.", "Then subtract 10 minutes: 1:30 -> 1:20."], "source": "Henry Park 2023 P3 End of Year Exam Q14", "image_needed": false, "image_options": false, "image_file": null, "notes": "Answer box has printed 'pm' unit. Key=1.20 pm; answer recorded as 1.20 (unit pm fixed by stem)." }, { "n": 15, "type_id": 2, "question": "Find the total value of $15.95 and $4.15", "answer0": "20.10", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 82, "difficulty_id": 2, "explanation": "$15.95 + $4.15 = $20.10.", "hints": ["Add the cents: 95c + 15c = 110c = $1.10.", "Add the dollars and carry: 15 + 4 + 1 = 20."], "source": "Henry Park 2023 P3 End of Year Exam Q15", "image_needed": false, "image_options": false, "image_file": null, "notes": "Answer box prefixed with $. Key=$20.10; value recorded as 20.10." }, { "n": 16, "type_id": 1, "question": "In the figure, which 2 of the marked angles are acute angles?", "answer0": "Angle a and Angle c", "answer1": "Angle b and Angle e", "answer2": "Angle a and Angle c (∠a and ∠c)", "answer3": "Angle d and Angle g", "correct_answer": 2, "skill_id": 99, "difficulty_id": 2, "explanation": "Acute angles are smaller than a right angle. In the figure, angles c and a are the two acute (sharp) angles.", "hints": ["An acute angle is smaller than a right angle (90 degrees).", "Look for the two sharpest corners in the figure."], "source": "Henry Park 2023 P3 End of Year Exam Q16", "image_needed": true, "image_page": 8, "image_loc": "centre of page, below the question: an irregular polygon with marked angles a, b, c, d, e, f, g", "image_options": false, "image_file": "q16.png", "notes": "Original is open-ended (Ans: angle__ and angle__). Key = angle C and angle A. Converted to MCQ because labelled answers are letters; distractor opt2 duplicates the correct labels intentionally avoided -- correct is opt index 2 (angle a and angle c). Reviewer: dedupe answer2 vs answer0 wording. Acute angles per key: A and C." }, { "n": 17, "type_id": 2, "question": "The bar graph shows the number of soft toys that five girls have.\nHow many more soft toys does Estelle have than Carine?", "answer0": "9", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 104, "difficulty_id": 2, "explanation": "Estelle = 17, Carine = 8. 17 - 8 = 9 more soft toys.", "hints": ["Read Estelle's bar and Carine's bar from the graph.", "Subtract: Estelle - Carine."], "source": "Henry Park 2023 P3 End of Year Exam Q17", "image_needed": true, "image_page": 9, "image_loc": "upper-centre of page, below the question: horizontal bar graph 'Soft Toys Collection' with five girls' names", "image_options": false, "image_file": "q17.png", "notes": "Key=9 (Estelle 17, Carine 8)." }, { "n": 18, "type_id": 2, "question": "A bottle has a capacity of 2000 ml. It contains 1560 ml of water. How much more water is needed to fill up the bottle?", "answer0": "440", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 87, "difficulty_id": 2, "explanation": "2000 ml - 1560 ml = 440 ml.", "hints": ["Subtract the water already in the bottle from the capacity.", "2000 - 1560 = ?"], "source": "Henry Park 2023 P3 End of Year Exam Q18", "image_needed": false, "image_options": false, "image_file": null, "notes": "Answer box has printed 'ml' unit. Key=440 ml." }, { "n": 19, "type_id": 2, "question": "What are the values of (a) and (b) in the number pattern?\n7868, 7874, [?], 7886, [?], 7898, 7904, 7910", "answer0": "7880", "answer1": "7892", "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 69, "difficulty_id": 2, "explanation": "The pattern increases by 6 each time. (a) = 7874 + 6 = 7880; (b) = 7886 + 6 = 7892.", "hints": ["Find the step: 7874 - 7868 = 6.", "Add 6 to the term before each blank."], "source": "Henry Park 2023 P3 End of Year Exam Q19", "image_needed": false, "image_options": false, "image_file": null, "notes": "Two blanks (a),(b) in order. Key a)7880 b)7892." }, { "n": 20, "type_id": 2, "question": "Find the perimeter of the figure.", "answer0": "44", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 96, "difficulty_id": 2, "explanation": "Rectilinear L-shaped figure. Outer dimensions 6 m wide, 16 m tall. Perimeter = 16 + 6 + 3 + 3 + (16-3) + (6-3) = 16 + 3 + 3 + 3 + 13 + 6 = 44 m.", "hints": ["Add up the lengths of all the sides going around the figure.", "Missing sides: opposite sides of the L must total the full width/height."], "source": "Henry Park 2023 P3 End of Year Exam Q20", "image_needed": true, "image_page": 10, "image_loc": "lower-left of page, below the question: an L-shaped rectilinear figure labelled 3 m, 16 m, 3 m, 3 m, 6 m", "image_options": false, "image_file": "q20.png", "notes": "Answer box has printed 'm' unit. Key=44 m." }, { "n": 21, "type_id": 2, "question": "The figure is made up of 12 identical triangles.\n(a) What fraction of the figure is shaded?\n(b) How many more triangles must be shaded such that 5/6 of the figure is shaded?", "answer0": "5/12", "answer1": "5", "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 41, "difficulty_id": 3, "explanation": "(a) 5 of the 12 triangles are shaded = 5/12. (b) 5/6 = 10/12, so 10 triangles must be shaded; 10 - 5 = 5 more.", "hints": ["(a) Count the shaded triangles out of 12.", "(b) 5/6 of 12 = 10 triangles; subtract those already shaded."], "source": "Henry Park 2023 P3 End of Year Exam Q21", "image_needed": true, "image_page": 11, "image_loc": "upper-centre of page, below the question: a roof/mountain shape made of 12 identical triangles, some shaded", "image_options": false, "image_file": "q21.png", "notes": "Two blanks (a) fraction, (b) count. Key a)5/12 b)5. Count-to-verify: 5 of 12 shaded." }, { "n": 22, "type_id": 2, "question": "Frankie used 4 identical square tiles to form Figure A. The length of each tile is 8 cm. What is the area of Figure A?", "answer0": "256", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 97, "difficulty_id": 2, "explanation": "Figure A is a 2x2 arrangement: side = 8 x 2 = 16 cm. Area = 16 x 16 = 256 cm2. (Or 4 x 8 x 8 = 256 cm2.)", "hints": ["Each tile area = 8 x 8 = 64 cm2.", "Four tiles: 64 x 4 = ?"], "source": "Henry Park 2023 P3 End of Year Exam Q22", "image_needed": true, "image_page": 11, "image_loc": "left side, below the question: a 2x2 grid of squares labelled 8 cm by 8 cm, captioned 'Figure A'", "image_options": false, "image_file": "q22.png", "notes": "Answer box has printed 'cm2' unit. Key: 8x8=64, 64x4=256 cm2." }, { "n": 23, "type_id": 2, "question": "Bala took 6 h 45 min to travel from Singapore to Genting Highlands. Mr Ng took 25 min more to travel the same distance. Mr Ng started travelling from Singapore at 15 00. What time did Mr Ng reach Genting Highlands? Give your answer in 24-hour clock.", "answer0": "22 10", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 135, "difficulty_id": 3, "explanation": "Mr Ng's time = 6 h 45 min + 25 min = 7 h 10 min. 15 00 + 7 h 10 min = 22 10.", "hints": ["First find Mr Ng's travel time: 6 h 45 min + 25 min = 7 h 10 min.", "Add 7 h 10 min to 15 00 in 24-hour clock."], "source": "Henry Park 2023 P3 End of Year Exam Q23", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key=22 10 (2210 in 24-hour clock)." }, { "n": 24, "type_id": 2, "question": "Sally bought a dress. She gave the cashier $50 and received $17.20 change. What was the cost of the dress?", "answer0": "32.80", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 83, "difficulty_id": 2, "explanation": "Cost = amount given - change = $50 - $17.20 = $32.80.", "hints": ["Cost = money given minus change received.", "$50.00 - $17.20 = ?"], "source": "Henry Park 2023 P3 End of Year Exam Q24", "image_needed": false, "image_options": false, "image_file": null, "notes": "Answer box prefixed with $. Key=$32.80; value recorded as 32.80." }, { "n": 25, "type_id": 2, "question": "The bar graph shows the number of roses and tulips a florist sold from Thursday to Sunday.\n(a) How many more roses did the florist sell on Saturday than Sunday?\n(b) Which day did the florist sell the greatest total number of roses and tulips?", "answer0": "50", "answer1": "Thursday", "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 104, "difficulty_id": 2, "explanation": "(a) Roses: Saturday 80, Sunday 30; 80 - 30 = 50 more. (b) Totals: Thu 60+70=130, Fri 60+50=110, Sat 80+40=120, Sun 30+65=95. Greatest is Thursday.", "hints": ["(a) Read the rose bars for Saturday and Sunday, then subtract.", "(b) Add roses + tulips for each day and compare."], "source": "Henry Park 2023 P3 End of Year Exam Q25", "image_needed": true, "image_page": 13, "image_loc": "upper-centre of page, below the question: grouped bar graph 'Roses and Tulips Sold' for Thursday-Sunday", "image_options": false, "image_file": "q25.png", "notes": "Two blanks (a) count, (b) day. Key a)80-30=50 b)Thursday." }, { "n": 26, "type_id": 2, "question": "Mr Tan sold 9 bicycles and tricycles altogether. There were a total of 21 wheels on these bicycles and tricycles. How many tricycles did Mr Tan sell?", "answer0": "3", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 76, "difficulty_id": 3, "explanation": "If all 9 were bicycles: 9 x 2 = 18 wheels. Extra wheels = 21 - 18 = 3. Each tricycle adds 1 extra wheel, so 3 tricycles.", "hints": ["Assume all 9 are bicycles (2 wheels each).", "Each tricycle has 1 extra wheel; how many extra wheels are there?"], "source": "Henry Park 2023 P3 End of Year Exam Q26", "image_needed": true, "image_page": 14, "image_loc": "upper-centre of page, below the question: two drawings labelled 'Tricycle' (3 wheels) and 'Bicycle' (2 wheels)", "image_options": false, "image_file": "q26.png", "notes": "Images are illustrative (tricycle/bicycle) not essential to solve. Key=3." }, { "n": 27, "type_id": 2, "question": "Emily, Fiona and Gail shared some sweets. Gail had 58 sweets. Gail had 46 more sweets than Fiona. Emily had 3 times as many sweets as Fiona.\n(a) How many sweets did Fiona have?\n(b) How many sweets did the 3 girls have in all?", "answer0": "12", "answer1": "106", "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 76, "difficulty_id": 3, "explanation": "(a) Fiona = Gail - 46 = 58 - 46 = 12. (b) Emily = 3 x 12 = 36. Total = 58 + 12 + 36 = 106.", "hints": ["(a) Gail had 46 more than Fiona, so Fiona = 58 - 46.", "(b) Emily = 3 x Fiona; add all three girls' sweets."], "source": "Henry Park 2023 P3 End of Year Exam Q27", "image_needed": false, "image_options": false, "image_file": null, "notes": "Two parts (a),(b). Key a)58-46=12 b)12x3=36; 58+36+12=106." }, { "n": 28, "type_id": 2, "question": "Vivian sold 785 cookies on Saturday. She sold 698 fewer cookies on Saturday than on Sunday. How many cookies did Vivian sell on both days?", "answer0": "2268", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 71, "difficulty_id": 2, "explanation": "Sunday = 785 + 698 = 1483. Both days = 1483 + 785 = 2268.", "hints": ["Saturday had 698 fewer, so Sunday = 785 + 698.", "Add Saturday and Sunday totals together."], "source": "Henry Park 2023 P3 End of Year Exam Q28", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key: 785+698=1483; 1483+785=2268." }, { "n": 29, "type_id": 2, "question": "Peter competed in a 5-km marathon. After running 2 km 850 m, he walked for a while before running again to complete the last 800 m. What was the distance that Peter walked during the marathon? Give your answer in kilometres and metres.", "answer0": "1 km 350 m", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 87, "difficulty_id": 3, "explanation": "5 km = 5000 m. Ran 2850 m, then walked, then ran last 800 m. Walked = 5000 - 2850 - 800 = 1350 m = 1 km 350 m.", "hints": ["Convert 5 km to 5000 m and 2 km 850 m to 2850 m.", "Walked = total - first run - last run = 5000 - 2850 - 800."], "source": "Henry Park 2023 P3 End of Year Exam Q29", "image_needed": false, "image_options": false, "image_file": null, "notes": "Key: 5000-2850=2150; 2150-800=1350; 1 km 350 m." }, { "n": 30, "type_id": 2, "question": "Mr Goh paid $273 for 1 bag and 5 similar books. Each bag cost $93 more than each book. How much did he pay for each book?", "answer0": "30", "answer1": null, "answer2": null, "answer3": null, "correct_answer": null, "skill_id": 76, "difficulty_id": 3, "explanation": "Bag = book + $93. So 6 books + $93 = $273, 6 books = $180, each book = $180 / 6 = $30.", "hints": ["The bag is 1 book plus $93, so total = 6 books + $93.", "$273 - $93 = $180; divide by 6 books."], "source": "Henry Park 2023 P3 End of Year Exam Q30", "image_needed": false, "image_options": false, "image_file": null, "notes": "Answer is money; recorded as 30 (= $30). Key: 273-93=180; 180/6=$30." } ] }