{
  "title": "Subtraction - Word Problems",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Riya had 8 apples. She ate 3. How many are left?",
      "options": { "A": "5", "B": "4", "C": "6", "D": "3" },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "A box had 10 chocolates. 4 were eaten. How many remain?",
      "options": { "A": "5", "B": "6", "C": "4", "D": "7" },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "9 birds were sitting. 2 flew away. How many are left?",
      "options": { "A": "6", "B": "7", "C": "8", "D": "9" },
      "correct_answer": "B"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "A girl had 7 balloons. 1 burst. How many balloons are left?",
      "options": { "A": "5", "B": "6", "C": "7", "D": "4" },
      "correct_answer": "B"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "A box has 12 crayons. 5 were lost. How many remain?",
      "options": { "A": "7", "B": "8", "C": "6", "D": "9" },
      "correct_answer": "A"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Salman had 15 marbles. He gave 5. How many are left?",
      "options": { "A": "11", "B": "9", "C": "10", "D": "12" },
      "correct_answer": "C"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "A shopkeeper had 14 pens. He sold 6. Pens left?",
      "options": { "A": "7", "B": "8", "C": "6", "D": "9" },
      "correct_answer": "B"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "There were 18 balloons. 9 flew away. How many left?",
      "options": { "A": "9", "B": "8", "C": "7", "D": "6" },
      "correct_answer": "A"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "A bag had 20 candies. 11 were eaten. Remaining?",
      "options": { "A": "8", "B": "9", "C": "10", "D": "11" },
      "correct_answer": "B"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "A student had 16 stickers. She used 6. How many left?",
      "options": { "A": "9", "B": "10", "C": "11", "D": "8" },
      "correct_answer": "B"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "There were 25 oranges. 5 were rotten. Good oranges?",
      "options": { "A": "20", "B": "21", "C": "22", "D": "19" },
      "correct_answer": "A"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "A jar had 19 cookies. Kids ate 8. Cookies left?",
      "options": { "A": "10", "B": "11", "C": "12", "D": "9" },
      "correct_answer": "B"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "A child had 17 blocks. 7 fell. How many left?",
      "options": { "A": "8", "B": "9", "C": "10", "D": "7" },
      "correct_answer": "C"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "There were 22 birds. 10 flew away. Birds left?",
      "options": { "A": "11", "B": "12", "C": "10", "D": "9" },
      "correct_answer": "B"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "A basket had 24 apples. 14 were used. Left?",
      "options": { "A": "10", "B": "12", "C": "11", "D": "14" },
      "correct_answer": "A"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "A student brought 30 pencils. Lost 10. Remaining?",
      "options": { "A": "20", "B": "21", "C": "19", "D": "22" },
      "correct_answer": "A"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "A boy had 28 marbles. He gave 8. How many left?",
      "options": { "A": "19", "B": "20", "C": "21", "D": "22" },
      "correct_answer": "B"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "A farmer had 32 eggs. He sold 12. Eggs left?",
      "options": { "A": "19", "B": "20", "C": "21", "D": "22" },
      "correct_answer": "B"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "A class had 40 students. 5 were absent. Present?",
      "options": { "A": "35", "B": "36", "C": "34", "D": "37" },
      "correct_answer": "A"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "A container had 50 candies. 25 were eaten. Left?",
      "options": { "A": "20", "B": "25", "C": "30", "D": "15" },
      "correct_answer": "B"
    },

    {
      "id": 21,
      "difficulty": "medium",
      "question": "A box had 35 chocolates. Children ate 17. How many left?",
      "options": { "A": "18", "B": "19", "C": "20", "D": "17" },
      "correct_answer": "A"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "A shopkeeper had 48 pens. He sold 29. Pens left?",
      "options": { "A": "19", "B": "20", "C": "18", "D": "21" },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "A jar had 52 cookies. 28 were eaten. Cookies left?",
      "options": { "A": "25", "B": "24", "C": "23", "D": "22" },
      "correct_answer": "B"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "A boy had 46 marbles. He lost 27. Remaining?",
      "options": { "A": "20", "B": "21", "C": "19", "D": "18" },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "A class had 63 students. 25 absent. Present?",
      "options": { "A": "28", "B": "38", "C": "36", "D": "40" },
      "correct_answer": "B"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "A farmer picked 74 mangoes, sold 36. Left?",
      "options": { "A": "38", "B": "39", "C": "37", "D": "40" },
      "correct_answer": "A"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "Riya had 59 stickers. She gave 28. How many left?",
      "options": { "A": "31", "B": "30", "C": "32", "D": "29" },
      "correct_answer": "A"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "A shop had 67 bags. Sold 29. Bags left?",
      "options": { "A": "39", "B": "38", "C": "37", "D": "40" },
      "correct_answer": "B"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Mom bought 82 apples. 47 used. Remaining?",
      "options": { "A": "36", "B": "35", "C": "34", "D": "37" },
      "correct_answer": "B"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "A library had 93 books. 56 issued. Books left?",
      "options": { "A": "37", "B": "38", "C": "36", "D": "35" },
      "correct_answer": "A"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "A basket had 70 oranges. 28 spoiled. Good ones?",
      "options": { "A": "42", "B": "41", "C": "43", "D": "40" },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "A bottle had 65 candies. 37 eaten. Left?",
      "options": { "A": "27", "B": "28", "C": "29", "D": "30" },
      "correct_answer": "B"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "A shop had 88 toys. Sold 59. Toys left?",
      "options": { "A": "30", "B": "29", "C": "28", "D": "27" },
      "correct_answer": "B"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "A farmer had 96 cows. 48 sold. Cows left?",
      "options": { "A": "48", "B": "46", "C": "52", "D": "49" },
      "correct_answer": "A"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "From 72 balloons, 39 flew away. Left?",
      "options": { "A": "33", "B": "34", "C": "35", "D": "32" },
      "correct_answer": "A"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "A school had 85 notebooks. Gave 47. Remaining?",
      "options": { "A": "39", "B": "38", "C": "37", "D": "36" },
      "correct_answer": "B"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "A shopkeeper had 92 bottles. Sold 58. Left?",
      "options": { "A": "34", "B": "35", "C": "33", "D": "36" },
      "correct_answer": "A"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "A painter had 64 brushes. 25 broke. Brushes left?",
      "options": { "A": "39", "B": "38", "C": "40", "D": "37" },
      "correct_answer": "A"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "A vendor had 75 bananas. He sold 47. Remaining?",
      "options": { "A": "27", "B": "28", "C": "29", "D": "30" },
      "correct_answer": "B"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "A class collected 83 shells. 41 given away. Remaining?",
      "options": { "A": "42", "B": "41", "C": "43", "D": "40" },
      "correct_answer": "A"
    },

    {
      "id": 41,
      "difficulty": "hard",
      "question": "A shop had 125 pencils. It sold 58. How many left?",
      "options": { "A": "67", "B": "77", "C": "68", "D": "66" },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "A farmer collected 143 apples. 69 were damaged. Good apples?",
      "options": { "A": "68", "B": "74", "C": "84", "D": "70" },
      "correct_answer": "B"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "A jar had 160 candies. Children ate 87. Remaining?",
      "options": { "A": "73", "B": "74", "C": "70", "D": "72" },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "A teacher had 182 worksheets. Used 95. Worksheets left?",
      "options": { "A": "97", "B": "90", "C": "87", "D": "88" },
      "correct_answer": "C"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "A school bought 215 books. Lost 128. Remaining?",
      "options": { "A": "97", "B": "87", "C": "88", "D": "90" },
      "correct_answer": "B"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "A box packed 134 toys. 76 were delivered. Toys left?",
      "options": { "A": "68", "B": "58", "C": "70", "D": "71" },
      "correct_answer": "B"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "A shop had 190 chocolates. Sold 99. Left?",
      "options": { "A": "81", "B": "91", "C": "90", "D": "89" },
      "correct_answer": "B"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "A farmer had 276 carrots. He sold 139. Carrots left?",
      "options": { "A": "137", "B": "136", "C": "147", "D": "146" },
      "correct_answer": "A"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "A basket stored 158 oranges. 86 spoiled. Left?",
      "options": { "A": "72", "B": "82", "C": "78", "D": "68" },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "A classroom had 240 charts. 123 were used. How many unused?",
      "options": { "A": "117", "B": "127", "C": "120", "D": "119" },
      "correct_answer": "A"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "A truck carried 320 boxes. Delivered 185. Boxes left?",
      "options": { "A": "145", "B": "135", "C": "140", "D": "138" },
      "correct_answer": "B"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "A hall had 450 chairs. 289 were occupied. Empty chairs?",
      "options": { "A": "161", "B": "171", "C": "159", "D": "163" },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "A jar had 310 coins. A child took 168. Coins left?",
      "options": {
        "A": "152",
        "B": "142",
        "C": "132",
        "D": "144"
      },
      "correct_answer": "B"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "A warehouse stored 600 bags. 347 were shipped. Remaining?",
      "options": { "A": "253", "B": "243", "C": "252", "D": "254" },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "A vendor had 415 bananas. Sold 267. Remaining?",
      "options": { "A": "148", "B": "158", "C": "168", "D": "178" },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "There were 520 students. 289 went home early. Remaining?",
      "options": {
        "A": "221",
        "B": "231",
        "C": "230",
        "D": "219"
      },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "A factory made 710 toys. 458 were sold. Toys left?",
      "options": { "A": "252", "B": "242", "C": "250", "D": "251" },
      "correct_answer": "A"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "A teacher collected 375 papers. Checked 198. Left to check?",
      "options": { "A": "177", "B": "187", "C": "178", "D": "176" },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "A library had 530 books. 246 were borrowed. Remaining?",
      "options": { "A": "284", "B": "274", "C": "286", "D": "276" },
      "correct_answer": "A"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "A store had 450 crayons. 275 were sold. Left?",
      "options": { "A": "185", "B": "175", "C": "170", "D": "165" },
      "correct_answer": "B"
    }
  ]
}