{
  "title": "Large Number Word Problems (4-digit) - Grade 4",
  "total_questions": 60,
  "questions": [


    {"id": 1, "difficulty": "easy",
    "question": "Sara collected 2,345 beads and found 1,234 more. How many beads does she have now?",
    "options": {"A": "3,579", "B": "3,589", "C": "3,679", "D": "3,779"},
    "correct_answer": "A"},

    {"id": 2, "difficulty": "easy",
    "question": "A school library has 4,500 books. If 2,345 are borrowed, how many books remain?",
    "options": {"A": "2,055", "B": "2,155", "C": "2,255", "D": "2,355"},
    "correct_answer": "B"},

    {"id": 3, "difficulty": "easy",
    "question": "A zoo has 3,450 visitors on Monday and 2,789 on Tuesday. How many visited in total?",
    "options": {"A": "6,139", "B": "6,149", "C": "6,239", "D": "6,339"},
    "correct_answer": "C"},
{ "id": 4, "difficulty": "easy",
  "question": "A bakery made 5,678 cookies. If 3,456 were sold, how many are left?",
  "options": {"A": "2,112", "B": "2,122", "C": "2,222", "D": "2,332"},
  "correct_answer": "C"
}
,

    {"id": 5, "difficulty": "easy",
    "question": "A store had 7,890 candies and bought 1,234 more. How many candies now?",
    "options": {"A": "9,124", "B": "9,134", "C": "9,224", "D": "9,334"},
    "correct_answer": "A"},

    {"id": 6, "difficulty": "easy",
    "question": "A train carried 4,567 passengers in the morning and 3,210 in the evening. Total passengers?",
    "options": {"A": "7,677", "B": "7,777", "C": "7,887", "D": "7,997"},
    "correct_answer": "B"},

    {"id": 7, "difficulty": "easy",
    "question": "A game has 2,345 players and 3,210 new players join. Total players now?",
    "options": {"A": "5,455", "B": "5,465", "C": "5,555", "D": "5,645"},
    "correct_answer": "C"},

{ "id": 8, "difficulty": "easy",
  "question": "A girl walked 1,234 steps before lunch and 2,345 after lunch. How many total steps?",
  "options": {"A": "3,479", "B": "3,589", "C": "3,579", "D": "3,679"},
  "correct_answer": "C"
}
,

    {"id": 9, "difficulty": "easy",
    "question": "A box had 5,678 pencils. If 1,234 were taken, how many remain?",
    "options": {"A": "4,444", "B": "4,445", "C": "4,456", "D": "4,468"},
    "correct_answer": "A"},

    {"id": 10, "difficulty": "easy",
    "question": "A farmer harvested 6,543 apples and sold 3,210. How many apples left?",
    "options": {"A": "3,233", "B": "3,333", "C": "3,443", "D": "3,533"},
    "correct_answer": "B"},

    {"id": 11, "difficulty": "easy",
    "question": "A book has 2,890 words. If a student read 1,678 words, how many words remain?",
    "options": {"A": "1,112", "B": "1,212", "C": "1,222", "D": "1,232"},
    "correct_answer": "C"},

    {"id": 12, "difficulty": "easy",
    "question": "A charity collected 4,567 items and needs 6,000. How many more required?",
    "options": {"A": "1,333", "B": "1,443", "C": "1,533", "D": "1,433"},
    "correct_answer": "D"},

    {"id": 13, "difficulty": "easy",
    "question": "A bus carried 3,456 people on Monday and 2,222 on Tuesday. Total passengers?",
    "options": {"A": "5,678", "B": "5,688", "C": "5,778", "D": "5,888"},
    "correct_answer": "A"},

{ "id": 14, "difficulty": "easy",
  "question": "A stadium has 7,890 seats. If 4,567 are full, how many seats are empty?",
  "options": {"A": "3,223", "B": "3,333", "C": "3,323", "D": "3,343"},
  "correct_answer": "C"
}
,

    {"id": 15, "difficulty": "easy",
    "question": "A factory made 3,200 toys and later made 2,345 more. Total toys?",
    "options": {"A": "5,545", "B": "5,555", "C": "5,645", "D": "5,745"},
    "correct_answer": "C"},

{ "id": 16, "difficulty": "easy",
  "question": "A manager counted 6,000 files. If 1,234 files were missing, how many remain?",
  "options": {"A": "4,766", "B": "4,776", "C": "4,786", "D": "4,796"},
  "correct_answer": "A"
}
,

    {"id": 17, "difficulty": "easy",
    "question": "A school planted 4,321 flowers and added 2,345 more. Total flowers?",
    "options": {"A": "6,666", "B": "6,676", "C": "6,566", "D": "6,677"},
    "correct_answer": "A"},

    {"id": 18, "difficulty": "easy",
    "question": "A cinema sold 5,678 tickets. If 3,456 were refunded, how many remain sold?",
    "options": {"A": "2,122", "B": "2,222", "C": "2,333", "D": "2,444"},
    "correct_answer": "B"},

    {"id": 19, "difficulty": "easy",
    "question": "A truck carried 7,890 kg of goods and unloaded 4,567 kg. Remaining load?",
    "options": {"A": "3,323", "B": "3,333", "C": "3,343", "D": "3,353"},
    "correct_answer": "C"},

{ "id": 20, "difficulty": "easy",
  "question": "A library added 2,345 new books to its 6,543 old books. Total books?",
  "options": {"A": "8,888", "B": "8,899", "C": "8,909", "D": "8,919"},
  "correct_answer": "A"
}
,

    {"id": 21, "difficulty": "medium",
    "question": "A mall had 9,876 visitors on Saturday and 7,654 on Sunday. Total visitors?",
    "options": {"A": "17,530", "B": "17,540", "C": "17,550", "D": "17,560"},
    "correct_answer": "A"},

    {"id": 22, "difficulty": "medium",
    "question": "A bookstore sold 6,789 books and received 2,345 more. How many books now?",
    "options": {"A": "9,034", "B": "9,134", "C": "9,144", "D": "9,234"},
    "correct_answer": "B"},

    {"id": 23, "difficulty": "medium",
    "question": "A company made 5,678 laptops and shipped 1,234. How many remain?",
    "options": {"A": "4,344", "B": "4,445", "C": "4,444", "D": "4,443"},
    "correct_answer": "C"},

    {"id": 24, "difficulty": "medium",
    "question": "A school spent $3,456 on books and $4,567 on computers. Total spent?",
    "options": {"A": "$8,023", "B": "$8,033", "C": "$8,123", "D": "$8,133"},
    "correct_answer": "D"},

    {"id": 25, "difficulty": "medium",
    "question": "A delivery truck traveled 7,890 km one month and 3,456 km the next. Total distance?",
    "options": {"A": "11,246", "B": "11,336", "C": "11,346", "D": "11,356"},
    "correct_answer": "A"},

    {"id": 26, "difficulty": "medium",
    "question": "A factory produced 9,234 boxes and used 5,678 of them. Boxes left?",
    "options": {"A": "3,456", "B": "3,566", "C": "3,644", "D": "3,556"},
    "correct_answer": "B"},

    {"id": 27, "difficulty": "medium",
    "question": "A store had 8,765 items; 2,345 were damaged. How many good items?",
    "options": {"A": "6,420", "B": "6,430", "C": "6,520", "D": "6,530"},
    "correct_answer": "C"},

    {"id": 28, "difficulty": "medium",
    "question": "A school printed 5,678 worksheets and later printed 4,321 more. Total print?",
    "options": {"A": "9,899", "B": "9,999", "C": "10,099", "D": "10,199"},
    "correct_answer": "D"},

    {"id": 29, "difficulty": "medium",
    "question": "A factory used 7,654 kg of cotton and added 3,210 more. Total cotton?",
    "options": {"A": "10,864", "B": "10,764", "C": "10,854", "D": "10,954"},
    "correct_answer": "A"},

    {"id": 30, "difficulty": "medium",
    "question": "A class raised $4,567 and then raised $3,456 more. Total amount?",
    "options": {"A": "$7,923", "B": "$7,933", "C": "$7,943", "D": "$7,953"},
    "correct_answer": "B"},

    {"id": 31, "difficulty": "medium",
    "question": "A museum had 6,789 visitors and then 2,345 more came. Total visitors?",
    "options": {"A": "9,034", "B": "9,134", "C": "9,144", "D": "9,234"},
    "correct_answer": "C"},

    {"id": 32, "difficulty": "medium",
    "question": "A cafe served 3,210 customers and then 4,567 more. Total customers?",
    "options": {"A": "7,777", "B": "7,787", "C": "7,867", "D": "7,889"},
    "correct_answer": "D"},

    {"id": 33, "difficulty": "medium",
    "question": "A warehouse stored 8,765 boxes; 4,321 were delivered. Boxes left?",
    "options": {"A": "4,444", "B": "4,445", "C": "4,454", "D": "4,465"},
    "correct_answer": "A"},

    {"id": 34, "difficulty": "medium",
    "question": "A gardener planted 7,890 flowers and removed 1,234. How many remain?",
    "options": {"A": "6,566", "B": "6,656", "C": "6,556", "D": "6,666"},
    "correct_answer": "B"},

    {"id": 35, "difficulty": "medium",
    "question": "A store ordered 6,543 bottles; 3,210 were sold. How many remain?",
    "options": {"A": "3,233", "B": "3,333", "C": "3,343", "D": "3,353"},
    "correct_answer": "C"},

    {"id": 36, "difficulty": "medium",
    "question": "A train traveled 8,888 km and then 1,234 km more. Total distance?",
    "options": {"A": "10,112", "B": "10,122", "C": "10,132", "D": "10,140"},
    "correct_answer": "D"},

{ "id": 37, "difficulty": "medium",
  "question": "A mall counted 5,678 shoppers one day and 4,321 the next. Total shoppers?",
  "options": {"A": "9,999", "B": "9,889", "C": "10,099", "D": "10,199"},
  "correct_answer": "A"
}
,

    {"id": 38, "difficulty": "medium",
    "question": "A factory produced 6,543 toys and added 3,456 more. Total toys?",
    "options": {"A": "9,899", "B": "9,999", "C": "10,099", "D": "10,199"},
    "correct_answer": "B"},

    {"id": 39, "difficulty": "medium",
    "question": "A school cafeteria used 7,890 trays and bought 2,234 more. Total trays?",
    "options": {"A": "10,124", "B": "10,134", "C": "10,224", "D": "10,244"},
    "correct_answer": "C"},

    {"id": 40, "difficulty": "medium",
    "question": "A factory stored 9,876 parts and used 4,567. Remaining parts?",
    "options": {"A": "5,209", "B": "5,219", "C": "5,309", "D": "5,409"},
    "correct_answer": "D"},


    {"id": 41, "difficulty": "hard",
    "question": "A company earned $12,345 and spent $4,567. What is the remaining amount?",
    "options": {"A": "$7,778", "B": "$7,788", "C": "$7,798", "D": "$7,808"},
    "correct_answer": "A"},

    {"id": 42, "difficulty": "hard",
    "question": "A warehouse has 15,678 boxes. If 8,765 are shipped, how many remain?",
    "options": {"A": "6,893", "B": "6,913", "C": "6,923", "D": "6,933"},
    "correct_answer": "B"},

{ "id": 43, "difficulty": "hard",
  "question": "A country imported 14,567 cars and exported 6,789. Cars in stock?",
  "options": {"A": "7,788", "B": "7,878", "C": "7,778", "D": "7,768"},
  "correct_answer": "C"
}
,

{ "id": 44, "difficulty": "hard",
  "question": "A business generated $18,765 and spent $9,876. Remaining profit?",
  "options": {"A": "$8,889", "B": "$8,899", "C": "$8,799", "D": "$8,999"},
  "correct_answer": "A"
}
,

    {"id": 45, "difficulty": "hard",
    "question": "A large tank held 20,000 L of water. After using 7,654 L, how much water is left?",
    "options": {"A": "12,346", "B": "12,456", "C": "12,336", "D": "12,446"},
    "correct_answer": "A"},

    {"id": 46, "difficulty": "hard",
    "question": "A shipping company delivered 17,890 packages and then another 4,321. Total delivered?",
    "options": {"A": "22,111", "B": "22,211", "C": "22,201", "D": "22,221"},
    "correct_answer": "B"},

    {"id": 47, "difficulty": "hard",
    "question": "A city built 13,456 houses and later added 6,543 more. Total houses?",
    "options": {"A": "19,899", "B": "19,999", "C": "20,099", "D": "20,199"},
    "correct_answer": "C"},

    {"id": 48, "difficulty": "hard",
    "question": "A business processed 9,876 orders and later 7,890 more. Total orders?",
    "options": {"A": "17,756", "B": "17,766", "C": "17,666", "D": "17,786"},
    "correct_answer": "D"},

    {"id": 49, "difficulty": "hard",
    "question": "A country harvested 25,678 tons of crops and exported 14,567. Remaining?",
    "options": {"A": "11,101", "B": "11,111", "C": "11,201", "D": "11,301"},
    "correct_answer": "A"},

    {"id": 50, "difficulty": "hard",
    "question": "A scientist recorded 16,789 results and removed 5,678 faulty ones. Valid results?",
    "options": {"A": "11,011", "B": "11,121", "C": "11,111", "D": "11,221"},
    "correct_answer": "B"},

{ "id": 51, "difficulty": "hard",
  "question": "A factory produced 19,999 bolts and used 9,999. Remaining bolts?",
  "options": {"A": "9,900", "B": "10,000", "C": "10,100", "D": "10,200"},
  "correct_answer": "B"
}
,

    {"id": 52, "difficulty": "hard",
    "question": "A corporation earned $22,345 and then earned $13,210 more. Total earnings?",
    "options": {"A": "$35,445", "B": "$35,555", "C": "$35,455", "D": "$35,565"},
    "correct_answer": "D"},
{ "id": 53, "difficulty": "hard",
  "question": "A city recorded 18,765 visitors and later 14,567 more. Total visitors?",
  "options": {"A": "33,332", "B": "33,322", "C": "33,342", "D": "33,352"},
  "correct_answer": "A"
}
,

    {"id": 54, "difficulty": "hard",
    "question": "A plant produced 17,890 parts and 3,210 were defective. Good parts?",
    "options": {"A": "14,580", "B": "14,670", "C": "14,680", "D": "14,700"},
    "correct_answer": "B"},

 { "id": 55, "difficulty": "hard",
  "question": "A data center stored 28,765 files and deleted 12,345. Files left?",
  "options": {"A": "16,420", "B": "16,520", "C": "16,430", "D": "16,440"},
  "correct_answer": "C"
}
,

    {"id": 56, "difficulty": "hard",
    "question": "A village used 19,876 L of water and then used 3,456 more. Total usage?",
    "options": {"A": "23,232", "B": "23,342", "C": "23,332", "D": "23,222"},
    "correct_answer": "D"},
{ "id": 57, "difficulty": "hard",
  "question": "A company had 26,543 units and sold 7,890. Remaining units?",
  "options": {"A": "18,653", "B": "18,733", "C": "18,743", "D": "18,753"},
  "correct_answer": "A"
}
,

    {"id": 58, "difficulty": "hard",
    "question": "A school recorded 14,567 participants and added 6,789 more. Total participants?",
    "options": {"A": "21,256", "B": "21,356", "C": "21,456", "D": "21,566"},
    "correct_answer": "B"},

    {"id": 59, "difficulty": "hard",
    "question": "A mining company extracted 33,456 tons and then 12,345 more. Total extraction?",
    "options": {"A": "45,701", "B": "45,801", "C": "45,901", "D": "46,001"},
    "correct_answer": "C"},

{ "id": 60, "difficulty": "hard",
  "question": "A country printed 27,890 passports and later printed 14,567 more. Total passports?",
  "options": {"A": "42,457", "B": "42,467", "C": "42,357", "D": "42,557"},
  "correct_answer": "A"
}


  ]
}