{
  "paper": {
    "school": "Nan Hua",
    "year": 2022,
    "level": "P3",
    "label": "Weighted Assessment 2",
    "source_prefix": "Nan Hua 2022 P3 Weighted Assessment 2",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "7 hundreds x 3 = [?]",
      "answer0": "21",
      "answer1": "210",
      "answer2": "2100",
      "answer3": "21 000",
      "correct_answer": 2,
      "skill_id": 66,
      "difficulty_id": 1,
      "explanation": "7 hundreds = 700, and 700 x 3 = 2100.",
      "hints": ["7 hundreds is 700.", "Multiply 700 by 3."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q1 = option 3 (2100), here 0-based index 2."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "6 groups of 5 is the same as [?]",
      "answer0": "5 + 5 + 5 + 5 + 5 + 5",
      "answer1": "5 x 5 x 5 x 5 x 5 x 5",
      "answer2": "6 + 6 + 6 + 6 + 6",
      "answer3": "6 x 6 x 6 x 6 x 6",
      "correct_answer": 0,
      "skill_id": 39,
      "difficulty_id": 1,
      "explanation": "6 groups of 5 means 5 added 6 times: 5 + 5 + 5 + 5 + 5 + 5.",
      "hints": ["A group of 5 means add 5.", "6 groups means add 5 six times."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q2 = option 1, here 0-based index 0."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "The number statement that represents the diagram is [?]",
      "answer0": "5 x 5",
      "answer1": "5 x 6",
      "answer2": "7 x 5",
      "answer3": "7 x 7",
      "correct_answer": 2,
      "skill_id": 39,
      "difficulty_id": 2,
      "explanation": "The grid has 7 rows of 5 squares each, so it represents 7 x 5.",
      "hints": ["Count the rows.", "Count the squares in each row, then multiply."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q3",
      "image_needed": true,
      "image_page": 2,
      "image_loc": "upper-left of page, the 7-row by 5-column grid below the question",
      "image_options": false,
      "image_file": "q3.png",
      "notes": "Key Q3 = option 3 (7 x 5), here 0-based index 2. Grid is 7 rows x 5 columns."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "When I divide a number by 6, my remainder could be [?]",
      "answer0": "5",
      "answer1": "6",
      "answer2": "7",
      "answer3": "8",
      "correct_answer": 0,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "A remainder when dividing by 6 must be less than 6, so only 5 is possible.",
      "hints": ["The remainder is always smaller than the divisor.", "Which option is less than 6?"],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q4",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q4 = option 1 (5), here 0-based index 0."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "Which of the following number has a remainder of 2 when divided by 3?",
      "answer0": "298",
      "answer1": "381",
      "answer2": "496",
      "answer3": "572",
      "correct_answer": 3,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "572 = 3 x 190 + 2, so it leaves a remainder of 2. (298 r1, 381 r0, 496 r1.)",
      "hints": ["A number is divisible by 3 if its digit sum is divisible by 3.", "Check the remainder of each digit sum when divided by 3."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q5 = option 4 (572), here 0-based index 3."
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "Which of the following number cannot be divided by 6 exactly?",
      "answer0": "354",
      "answer1": "432",
      "answer2": "768",
      "answer3": "813",
      "correct_answer": 3,
      "skill_id": 74,
      "difficulty_id": 2,
      "explanation": "813 is odd, so it is not divisible by 6 (a multiple of 6 must be even). 354, 432 and 768 are all even with digit sums divisible by 3.",
      "hints": ["A multiple of 6 must be even.", "813 is odd."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q6 = option 4 (813), here 0-based index 3."
    },
    {
      "n": 7,
      "type_id": 1,
      "question": "When a number is divided by 4, the quotient is 117 with remainder 1. What is the number?",
      "answer0": "121",
      "answer1": "469",
      "answer2": "472",
      "answer3": "585",
      "correct_answer": 1,
      "skill_id": 75,
      "difficulty_id": 2,
      "explanation": "Number = 4 x 117 + 1 = 468 + 1 = 469.",
      "hints": ["Number = divisor x quotient + remainder.", "Work out 4 x 117, then add 1."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q7 = option 2 (469), here 0-based index 1."
    },
    {
      "n": 8,
      "type_id": 1,
      "question": "A baker bakes 122 cupcakes a day. How many cupcakes can he bake in 7 days?",
      "answer0": "744",
      "answer1": "844",
      "answer2": "854",
      "answer3": "2114",
      "correct_answer": 2,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "122 x 7 = 854 cupcakes.",
      "hints": ["Multiply the daily amount by the number of days.", "122 x 7."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q8 = option 3 (854), here 0-based index 2."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Randy has 318 bookmarks. His sister has 6 times as many bookmarks as Randy. How many bookmarks does his sister have?",
      "answer0": "1908",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "318 x 6 = 1908 bookmarks.",
      "hints": ["6 times as many means multiply by 6.", "318 x 6."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q9: 318 x 6 = 1908."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "A fruit seller has 405 mangoes. He packed the mangoes in 5 boxes. How many mangoes are there in each box?",
      "answer0": "81",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "405 / 5 = 81 mangoes in each box.",
      "hints": ["Sharing equally means divide.", "405 divided by 5."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q10: 405 / 5 = 81."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "Miss Rita has a ribbon that is 252cm long. She cuts the ribbon into 9 equal strips. How long is 1 strip of the small ribbon?",
      "answer0": "28",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 2,
      "explanation": "252 cm / 9 = 28 cm for each strip.",
      "hints": ["Equal strips means divide the total length.", "252 divided by 9."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Answer in cm. Key Q11: 252cm / 9 = 28cm."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "Billy and Rick made 162 paper cranes to decorate the school hall. Billy made 5 times as many paper cranes as Rick. (a) How many paper cranes did Billy make? (b) How many paper cranes did Rick make?",
      "answer0": "135",
      "answer1": "27",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "Together they make 5 + 1 = 6 units = 162, so 1 unit (Rick) = 162 / 6 = 27. Billy = 5 x 27 = 135. (a) Billy made 135. (b) Rick made 27.",
      "hints": ["Rick is 1 unit; Billy is 5 units, so 6 units in total.", "162 / 6 = 27 is Rick; multiply by 5 for Billy."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Two-blank FIB: answer0 = Billy (a) = 135, answer1 = Rick (b) = 27. Key: 27x5=135; 162/6=27."
    },
    {
      "n": 13,
      "type_id": 2,
      "question": "Uncle Jacob donated 260 pencils to a children's home. He packed the pencils into gift boxes. Each gift box contains 7 pencils. What is the least number of pencils he needs if he wants 7 pencils in every box?",
      "answer0": "6",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 76,
      "difficulty_id": 3,
      "explanation": "260 / 7 = 37 remainder 1. The leftover box has 1 pencil, so he needs 7 - 1 = 6 more pencils to make a complete box of 7.",
      "hints": ["Divide 260 by 7 and look at the remainder.", "The remainder is 1, so find how many more pencils complete a box of 7."],
      "source": "Nan Hua 2022 P3 Weighted Assessment 2 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "notes": "Key Q13: 260/7 = 37 R1, 7 - 1 = 6. The least number of pencils he needs (more) is 6."
    }
  ]
}