{
  "paper": {
    "school": "Raffles Girls",
    "year": 2022,
    "level": "P1",
    "label": "Review Assessment 4 Part 2",
    "source_prefix": "Raffles Girls 2022 P1 Review Assessment 4 Part 2",
    "has_answer_key": true
  },
  "questions": [
    {
      "n": 1,
      "type_id": 1,
      "question": "[?] is 10 more than 56.",
      "answer0": "46",
      "answer1": "57",
      "answer2": "60",
      "answer3": "66",
      "correct_answer": 3,
      "skill_id": 2,
      "difficulty_id": 1,
      "explanation": "10 more than 56 is 56 + 10 = 66.",
      "hints": ["10 more means add ten.", "Add 1 to the tens digit: 5 tens + 1 ten = 6 tens."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q1",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 1,
      "image_loc": null,
      "notes": "Answer key: option 4 (66). Stem retains [?] for the printed blank."
    },
    {
      "n": 2,
      "type_id": 1,
      "question": "8 tens 4 ones = [?]",
      "answer0": "84",
      "answer1": "48",
      "answer2": "12",
      "answer3": "4",
      "correct_answer": 0,
      "skill_id": 2,
      "difficulty_id": 1,
      "explanation": "8 tens = 80 and 4 ones = 4, so 80 + 4 = 84.",
      "hints": ["Tens digit comes first, then ones.", "8 tens is 80."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q2",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 1,
      "image_loc": null,
      "notes": "Answer key: option 1 (84)."
    },
    {
      "n": 3,
      "type_id": 1,
      "question": "Choose the correct addition equation for the picture.",
      "answer0": "12 + 50 = 62",
      "answer1": "22 + 50 = 72",
      "answer2": "50 + 20 = 70",
      "answer3": "52 + 20 = 72",
      "correct_answer": 1,
      "skill_id": 11,
      "difficulty_id": 2,
      "explanation": "Left group is 5 columns of 4 pairs = 5 groups of 10 = 50 stars, plus 1 column of 2 pairs = 22 on left side; the partitioned section shows 2 stars and the right group shows 4 columns of 4 pairs. Per answer key the equation is 22 + 50 = 72.",
      "hints": ["Count each side as tens.", "Each little cluster is two stars; count by twos then by tens."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q3",
      "image_needed": true,
      "image_options": false,
      "image_file": "q3.png",
      "image_page": 2,
      "image_loc": "top of page, rectangular box of star clusters split by a diagonal line, below the question text",
      "notes": "Answer key: option 2 (22 + 50 = 72). Figure shows star pairs grouped into tens; needs the image to make sense."
    },
    {
      "n": 4,
      "type_id": 1,
      "question": "Choose the correct subtraction equation for the picture.",
      "answer0": "18 - 11 = 7",
      "answer1": "18 - 7 = 11",
      "answer2": "30 - 18 = 12",
      "answer3": "25 - 7 = 18",
      "correct_answer": 3,
      "skill_id": 11,
      "difficulty_id": 2,
      "explanation": "There are 25 leaves in total and 7 are crossed out, leaving 18: 25 - 7 = 18.",
      "hints": ["Count the total leaves, then the crossed-out ones.", "Total minus crossed-out gives the remaining leaves."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q4",
      "image_needed": true,
      "image_options": false,
      "image_file": "q4.png",
      "image_page": 2,
      "image_loc": "middle of page, rectangular box of leaf icons (some crossed out), below the question text",
      "notes": "Answer key: option 4 (25 - 7 = 18). Figure shows 25 leaves with 7 crossed out."
    },
    {
      "n": 5,
      "type_id": 1,
      "question": "15 + 33 = [?]",
      "answer0": "18",
      "answer1": "38",
      "answer2": "45",
      "answer3": "48",
      "correct_answer": 3,
      "skill_id": 13,
      "difficulty_id": 1,
      "explanation": "15 + 33 = 48 (5 + 3 = 8 ones, 1 + 3 = 4 tens).",
      "hints": ["Add the ones first.", "Then add the tens."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q5",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 3,
      "image_loc": null,
      "notes": "Answer key: option 4 (48)."
    },
    {
      "n": 6,
      "type_id": 1,
      "question": "54 - 23 = [?]",
      "answer0": "31",
      "answer1": "37",
      "answer2": "71",
      "answer3": "77",
      "correct_answer": 0,
      "skill_id": 13,
      "difficulty_id": 1,
      "explanation": "54 - 23 = 31 (4 - 3 = 1 one, 5 - 2 = 3 tens).",
      "hints": ["Subtract the ones first.", "Then subtract the tens."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q6",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 3,
      "image_loc": null,
      "notes": "Answer key: option 1 (31)."
    },
    {
      "n": 7,
      "type_id": 1,
      "question": "Write the number 49 in words.",
      "answer0": "forty-nine",
      "answer1": "fourty-nine",
      "answer2": "four nine",
      "answer3": "ninety-four",
      "correct_answer": 0,
      "skill_id": 3,
      "difficulty_id": 1,
      "explanation": "49 in words is forty-nine.",
      "hints": ["The tens digit is 4 = forty.", "The ones digit is 9 = nine."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q7",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 3,
      "image_loc": null,
      "notes": "Answer key Q7a: forty-nine. Word-answer converted to MCQ per spec (text fill-ins are fragile). Q7b (write 100 in words = 'one hundred') is split into Q19 below to keep one answer per question."
    },
    {
      "n": 19,
      "type_id": 1,
      "question": "Write the number 100 in words.",
      "answer0": "one hundred",
      "answer1": "ten ten",
      "answer2": "one hundreds",
      "answer3": "hundred one",
      "correct_answer": 0,
      "skill_id": 3,
      "difficulty_id": 1,
      "explanation": "100 in words is one hundred.",
      "hints": ["100 is ten tens.", "It is written as one hundred."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q7b",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 3,
      "image_loc": null,
      "notes": "Answer key Q7b: one hundred. Split from Q7 (printed as 7b) so each manifest question has one answer. Word-answer converted to MCQ per spec."
    },
    {
      "n": 8,
      "type_id": 2,
      "question": "Arrange the numbers in order. Begin with the greatest. 35, 19, 90, 53 [?], [?], [?], [?]",
      "answer0": "90",
      "answer1": "53",
      "answer2": "35",
      "answer3": "19",
      "correct_answer": null,
      "skill_id": 5,
      "difficulty_id": 2,
      "explanation": "Greatest to smallest: 90, 53, 35, 19.",
      "hints": ["Compare the tens digits first.", "Start with the biggest number."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q8",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 4,
      "image_loc": null,
      "notes": "Answer key: 90, 53, 35, 19 (greatest first). Ordering task converted to FIB per spec; numbers listed in stem instead of card images."
    },
    {
      "n": 9,
      "type_id": 2,
      "question": "Complete the number bond using all the numbers given. a) 37, 43, 6: [?] = [?] , [?]",
      "answer0": "43",
      "answer1": "37",
      "answer2": "6",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 8,
      "difficulty_id": 2,
      "explanation": "The whole is the largest number 43; the parts are 37 and 6 (37 + 6 = 43).",
      "hints": ["The biggest number is the whole.", "The two smaller numbers are the parts."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q9",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 4,
      "image_loc": null,
      "notes": "Answer key Q9a: 43 = 37, 6. Number-bond converted to FIB; numbers given in stem so figure not required. Q9b (82 = 25, 57) split into Q20 below."
    },
    {
      "n": 20,
      "type_id": 2,
      "question": "Complete the number bond using all the numbers given. b) 82, 25, 57: [?] = [?] , [?]",
      "answer0": "82",
      "answer1": "25",
      "answer2": "57",
      "answer3": null,
      "correct_answer": null,
      "skill_id": 8,
      "difficulty_id": 2,
      "explanation": "The whole is the largest number 82; the parts are 25 and 57 (25 + 57 = 82).",
      "hints": ["The biggest number is the whole.", "The two smaller numbers are the parts."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q9b",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 4,
      "image_loc": null,
      "notes": "Answer key Q9b: 82 = 25, 57. Split from Q9 (printed as 9b). Order of parts matches the answer key (25 then 57)."
    },
    {
      "n": 10,
      "type_id": 2,
      "question": "Write an addition equation with the given numbers only: 16, 60, 76. [?] + [?] = [?]",
      "answer0": "16",
      "answer1": "60",
      "answer2": "76",
      "correct_answer": null,
      "skill_id": 11,
      "difficulty_id": 2,
      "explanation": "16 + 60 = 76 (the train carriages show 16, 60 and 76).",
      "hints": ["The two smaller numbers add to give the largest.", "16 + 60 = 76."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q10",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 5,
      "image_loc": null,
      "notes": "Answer key Q10: 16 + 60 = 76 (and 60 + 16 = 76). Write-the-equation converted to FIB; numbers given in stem so the train figure is not required. Only the first equation is captured (single answer per question)."
    },
    {
      "n": 11,
      "type_id": 2,
      "question": "Add. 32 + 49 = [?]",
      "answer0": "81",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 13,
      "difficulty_id": 2,
      "explanation": "32 + 49: 2 + 9 = 11, write 1 carry 1; 3 + 4 + 1 = 8 tens, so 81.",
      "hints": ["Add the ones: 2 + 9 = 11, regroup.", "Add the tens including the carried ten."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q11",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 5,
      "image_loc": null,
      "notes": "Answer key Q11a: 81. Column-addition rendered as horizontal FIB. Q11b (18 + 82 = 100) split into Q21 below."
    },
    {
      "n": 21,
      "type_id": 2,
      "question": "Add. 18 + 82 = [?]",
      "answer0": "100",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 13,
      "difficulty_id": 2,
      "explanation": "18 + 82: 8 + 2 = 10, write 0 carry 1; 1 + 8 + 1 = 10 tens, so 100.",
      "hints": ["Add the ones: 8 + 2 = 10, regroup.", "Add the tens including the carried ten."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q11b",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 5,
      "image_loc": null,
      "notes": "Answer key Q11b: 100. Split from Q11 (printed as 11b)."
    },
    {
      "n": 12,
      "type_id": 2,
      "question": "Write a subtraction equation based on the number bond: whole 43, parts 13 and 30. [?] - [?] = [?]",
      "answer0": "43",
      "answer1": "13",
      "answer2": "30",
      "correct_answer": null,
      "skill_id": 8,
      "difficulty_id": 2,
      "explanation": "The whole is 43; removing the part 13 leaves 30: 43 - 13 = 30.",
      "hints": ["Start from the whole number.", "Subtract one of the parts to get the other part."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q12",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 6,
      "image_loc": null,
      "notes": "Answer key Q12a: 43 - 13 = 30. Number-bond values given in stem so figure not required. Q12b (90 - 81 = 9) split into Q22 below."
    },
    {
      "n": 22,
      "type_id": 2,
      "question": "Write a subtraction equation based on the number bond: whole 90, parts 81 and 9. [?] - [?] = [?]",
      "answer0": "90",
      "answer1": "81",
      "answer2": "9",
      "correct_answer": null,
      "skill_id": 8,
      "difficulty_id": 2,
      "explanation": "The whole is 90; removing the part 81 leaves 9: 90 - 81 = 9.",
      "hints": ["Start from the whole number.", "Subtract one of the parts to get the other part."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q12b",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 6,
      "image_loc": null,
      "notes": "Answer key Q12b: 90 - 81 = 9. Split from Q12 (printed as 12b). Matches answer-key order (90 - 81 = 9)."
    },
    {
      "n": 13,
      "type_id": 2,
      "question": "Subtract. 93 - 27 = [?]",
      "answer0": "66",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 13,
      "difficulty_id": 2,
      "explanation": "93 - 27: 3 - 7 needs regrouping, 13 - 7 = 6 ones; 8 - 2 = 6 tens, so 66.",
      "hints": ["Regroup a ten to subtract the ones.", "Then subtract the tens."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q13",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 6,
      "image_loc": null,
      "notes": "Answer key Q13a: 66. Column-subtraction rendered as horizontal FIB. Q13b (50 - 46 = 4) split into Q23 below."
    },
    {
      "n": 23,
      "type_id": 2,
      "question": "Subtract. 50 - 46 = [?]",
      "answer0": "4",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 13,
      "difficulty_id": 2,
      "explanation": "50 - 46: regroup, 10 - 6 = 4 ones; 4 - 4 = 0 tens, so 4.",
      "hints": ["Regroup a ten to subtract the ones.", "Then subtract the tens."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q13b",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 6,
      "image_loc": null,
      "notes": "Answer key Q13b: 4. Split from Q13 (printed as 13b)."
    },
    {
      "n": 14,
      "type_id": 2,
      "question": "Complete the following number pattern. 98, 94, [?], 86, 82, [?], 74, 70, 66",
      "answer0": "90",
      "answer1": "78",
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 6,
      "difficulty_id": 2,
      "explanation": "The pattern decreases by 4 each time. 94 - 4 = 90; 82 - 4 = 78.",
      "hints": ["Find how much the numbers go down by each step.", "Each number is 4 less than the one before."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q14",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 6,
      "image_loc": null,
      "notes": "Answer key Q14: 90, 78. Two blanks in pattern order."
    },
    {
      "n": 15,
      "type_id": 2,
      "question": "Joan has 50 books. Jane has 15 books. How many books do they have altogether? They have [?] books altogether.",
      "answer0": "65",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 15,
      "difficulty_id": 2,
      "explanation": "Altogether means add: 50 + 15 = 65 books.",
      "hints": ["Altogether means add the two amounts.", "50 + 15 = 65."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q15",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 7,
      "image_loc": null,
      "notes": "Answer key Q15: 50 + 15 = 65."
    },
    {
      "n": 16,
      "type_id": 2,
      "question": "At a fruit stall, there are 65 apples. There are 25 fewer watermelons than apples. How many watermelons are there? There are [?] watermelons.",
      "answer0": "40",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 15,
      "difficulty_id": 2,
      "explanation": "Fewer means subtract: 65 - 25 = 40 watermelons.",
      "hints": ["Fewer means subtract.", "65 - 25 = 40."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q16",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 7,
      "image_loc": null,
      "notes": "Answer key Q16: 65 - 25 = 40."
    },
    {
      "n": 17,
      "type_id": 2,
      "question": "Jill baked 40 cookies. She baked 10 muffins. How many fewer muffins than cookies did Jill bake? She baked [?] fewer muffins than cookies.",
      "answer0": "30",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 15,
      "difficulty_id": 2,
      "explanation": "Find the difference: 40 - 10 = 30 fewer muffins.",
      "hints": ["'How many fewer' means find the difference.", "40 - 10 = 30."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q17",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 8,
      "image_loc": null,
      "notes": "Answer key Q17: 40 - 10 = 30."
    },
    {
      "n": 18,
      "type_id": 2,
      "question": "Ms Tan has 80 books. She has 20 fewer books than Mr Wong. How many books does Mr Wong have? Mr Wong has [?] books.",
      "answer0": "100",
      "answer1": null,
      "answer2": null,
      "answer3": null,
      "correct_answer": null,
      "skill_id": 15,
      "difficulty_id": 3,
      "explanation": "Ms Tan has 20 fewer than Mr Wong, so Mr Wong has more: 80 + 20 = 100 books.",
      "hints": ["If Ms Tan has fewer, Mr Wong has more.", "Add the difference: 80 + 20 = 100."],
      "source": "Raffles Girls 2022 P1 Review Assessment 4 Part 2 Q18",
      "image_needed": false,
      "image_options": false,
      "image_file": null,
      "image_page": 8,
      "image_loc": null,
      "notes": "Answer key Q18: 80 + 20 = 100. Reverse-comparison word problem (the 'fewer' subject is the smaller one), so add."
    }
  ]
}