{
  "title": "Subtraction - With Borrow",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "41 − 26",
      "options": { "A": "15", "B": "16", "C": "14", "D": "13" },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "52 − 38",
      "options": { "A": "12", "B": "14", "C": "13", "D": "15" },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "63 − 27",
      "options": { "A": "36", "B": "35", "C": "34", "D": "33" },
      "correct_answer": "A"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "74 − 58",
      "options": { "A": "16", "B": "14", "C": "15", "D": "13" },
      "correct_answer": "A"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "81 − 46",
      "options": { "A": "35", "B": "36", "C": "34", "D": "33" },
      "correct_answer": "A"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "72 − 47",
      "options": { "A": "25", "B": "24", "C": "26", "D": "23" },
      "correct_answer": "A"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "53 − 28",
      "options": { "A": "25", "B": "23", "C": "24", "D": "26" },
      "correct_answer": "A"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "64 − 27",
      "options": { "A": "47", "B": "37", "C": "34", "D": "41" },
      "correct_answer": "B"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "92 − 58",
      "options": { "A": "33", "B": "34", "C": "35", "D": "36" },
      "correct_answer": "B"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "75 − 46",
      "options": { "A": "29", "B": "28", "C": "27", "D": "26" },
      "correct_answer": "A"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "84 − 57",
      "options": { "A": "27", "B": "26", "C": "28", "D": "25" },
      "correct_answer": "A"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "63 − 48",
      "options": { "A": "14", "B": "16", "C": "15", "D": "13" },
      "correct_answer": "C"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "71 − 45",
      "options": { "A": "27", "B": "26", "C": "25", "D": "28" },
      "correct_answer": "B"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "96 − 59",
      "options": { "A": "37", "B": "38", "C": "39", "D": "36" },
      "correct_answer": "A"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "82 − 47",
      "options": { "A": "36", "B": "35", "C": "34", "D": "33" },
      "correct_answer": "B"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "54 − 28",
      "options": { "A": "24", "B": "25", "C": "26", "D": "27" },
      "correct_answer": "C"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "91 − 64",
      "options": { "A": "27", "B": "28", "C": "29", "D": "26" },
      "correct_answer": "A"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "83 − 57",
      "options": { "A": "27", "B": "28", "C": "26", "D": "25" },
      "correct_answer": "C"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "72 − 49",
      "options": { "A": "22", "B": "23", "C": "24", "D": "25" },
      "correct_answer": "B"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "61 − 38",
      "options": { "A": "22", "B": "21", "C": "23", "D": "24" },
      "correct_answer": "C"
    },

    {
      "id": 21,
      "difficulty": "medium",
      "question": "62 − 37",
      "options": { "A": "25", "B": "24", "C": "23", "D": "26" },
      "correct_answer": "A"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "54 − 29",
      "options": { "A": "25", "B": "26", "C": "27", "D": "24" },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "73 − 48",
      "options": { "A": "25", "B": "26", "C": "23", "D": "24" },
      "correct_answer": "A"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "91 − 57",
      "options": { "A": "34", "B": "32", "C": "31", "D": "33" },
      "correct_answer": "A"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "85 − 46",
      "options": { "A": "39", "B": "38", "C": "37", "D": "36" },
      "correct_answer": "A"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "94 − 58",
      "options": { "A": "35", "B": "36", "C": "37", "D": "34" },
      "correct_answer": "B"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "82 − 47",
      "options": { "A": "35", "B": "36", "C": "34", "D": "33" },
      "correct_answer": "A"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "63 − 29",
      "options": { "A": "32", "B": "34", "C": "33", "D": "35" },
      "correct_answer": "B"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "76 − 48",
      "options": { "A": "28", "B": "27", "C": "26", "D": "29" },
      "correct_answer": "A"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "87 − 59",
      "options": { "A": "28", "B": "29", "C": "27", "D": "26" },
      "correct_answer": "A"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "92 − 67",
      "options": { "A": "25", "B": "23", "C": "24", "D": "22" },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "74 − 46",
      "options": { "A": "28", "B": "29", "C": "26", "D": "24" },
      "correct_answer": "A"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "58 − 29",
      "options": { "A": "29", "B": "28", "C": "27", "D": "26" },
      "correct_answer": "A"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "83 − 57",
      "options": { "A": "27", "B": "28", "C": "26", "D": "25" },
      "correct_answer": "C"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "96 − 48",
      "options": { "A": "46", "B": "47", "C": "48", "D": "49" },
      "correct_answer": "C"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "72 − 39",
      "options": { "A": "33", "B": "34", "C": "35", "D": "32" },
      "correct_answer": "A"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "64 − 38",
      "options": { "A": "26", "B": "25", "C": "27", "D": "28" },
      "correct_answer": "A"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "95 − 47",
      "options": { "A": "48", "B": "49", "C": "47", "D": "45" },
      "correct_answer": "A"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "81 − 56",
      "options": { "A": "25", "B": "24", "C": "23", "D": "22" },
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "67 − 39",
      "options": { "A": "28", "B": "27", "C": "29", "D": "26" },
      "correct_answer": "A"
    },

    {
      "id": 41,
      "difficulty": "hard",
      "question": "94 − 58",
      "options": { "A": "36", "B": "37", "C": "35", "D": "34" },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "83 − 57",
      "options": { "A": "26", "B": "25", "C": "27", "D": "24" },
      "correct_answer": "A"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "72 − 49",
      "options": { "A": "21", "B": "22", "C": "23", "D": "24" },
      "correct_answer": "C"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "96 − 67",
      "options": { "A": "39", "B": "29", "C": "28", "D": "27" },
      "correct_answer": "B"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "87 − 58",
      "options": { "A": "28", "B": "29", "C": "30", "D": "31" },
      "correct_answer": "B"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "75 − 47",
      "options": { "A": "38", "B": "27", "C": "28", "D": "26" },
      "correct_answer": "C"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "93 − 68",
      "options": {
        "A": "25",
        "B": "24",
        "C": "26",
        "D": "27"
      },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "84 − 59",
      "options": { "A": "26", "B": "25", "C": "24", "D": "23" },
      "correct_answer": "B"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "91 − 68",
      "options": { "A": "33", "B": "34", "C": "23", "D": "22" },
      "correct_answer": "C"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "63 − 47",
      "options": { "A": "26", "B": "15", "C": "16", "D": "14" },
      "correct_answer": "C"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "74 − 58",
      "options": { "A": "14", "B": "15", "C": "17", "D": "16" },
      "correct_answer": "D"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "92 − 57",
      "options": { "A": "34", "B": "35", "C": "36", "D": "37" },
      "correct_answer": "B"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "68 − 39",
      "options": { "A": "29", "B": "30", "C": "31", "D": "28" },
      "correct_answer": "A"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "79 − 56",
      "options": { "A": "22", "B": "23", "C": "24", "D": "21" },
      "correct_answer": "B"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "95 − 67",
      "options": { "A": "28", "B": "27", "C": "29", "D": "26" },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "82 − 47",
      "options": { "A": "36", "B": "35", "C": "34", "D": "33" },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "71 − 58",
      "options": { "A": "14", "B": "13", "C": "15", "D": "12" },
      "correct_answer": "B"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "63 − 49",
      "options": { "A": "14", "B": "13", "C": "12", "D": "11" },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "86 − 57",
      "options": { "A": "28", "B": "29", "C": "30", "D": "31" },
      "correct_answer": "B"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "78 − 59",
      "options": { "A": "19", "B": "20", "C": "18", "D": "21" },
      "correct_answer": "A"
    }
  ]
}