{
  "title": "Operations on Integers - Grade 7 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "What is 5 + (-3)? ➕",
      "options": { "A": "8", "B": "2", "C": "-2", "D": "-8" },
      "correct_answer": "B"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "What is (-4) - (-2)? ➖",
      "options": { "A": "-6", "B": "-2", "C": "2", "D": "6" },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "What is 7 + (-7)? 🔄",
      "options": { "A": "14", "B": "0", "C": "-14", "D": "7" },
      "correct_answer": "B"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "What is (-8) + 5? 📉",
      "options": { "A": "13", "B": "3", "C": "-3", "D": "-13" },
      "correct_answer": "C"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "What is 10 - (-4)? ➕",
      "options": { "A": "6", "B": "14", "C": "-6", "D": "-14" },
      "correct_answer": "B"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "What is (-6) - 3? ➖",
      "options": { "A": "-9", "B": "-3", "C": "3", "D": "9" },
      "correct_answer": "A"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "What is 0 + (-9)? 🚫",
      "options": { "A": "9", "B": "-9", "C": "0", "D": "90" },
      "correct_answer": "B"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "What is (-5) + (-4)? 📉",
      "options": { "A": "1", "B": "-1", "C": "9", "D": "-9" },
      "correct_answer": "D"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "What is 12 - 15? 🔻",
      "options": { "A": "27", "B": "3", "C": "-3", "D": "-27" },
      "correct_answer": "C"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "What is (-3) - (-7)? 🔄",
      "options": { "A": "-10", "B": "-4", "C": "4", "D": "10" },
      "correct_answer": "C"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "What is 8 + (-12)? ➕",
      "options": { "A": "20", "B": "4", "C": "-4", "D": "-20" },
      "correct_answer": "C"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "What is (-9) + 0? ⚫",
      "options": { "A": "9", "B": "-9", "C": "0", "D": "90" },
      "correct_answer": "B"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "What is 6 - 6? 🔄",
      "options": { "A": "12", "B": "0", "C": "-12", "D": "6" },
      "correct_answer": "B"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "What is (-2) + (-8)? 📉",
      "options": { "A": "6", "B": "-6", "C": "10", "D": "-10" },
      "correct_answer": "D"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "What is 15 - 20? 🔻",
      "options": { "A": "5", "B": "-5", "C": "35", "D": "-35" },
      "correct_answer": "B"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "What is (-1) - (-1)? 🔄",
      "options": { "A": "0", "B": "-2", "C": "2", "D": "1" },
      "correct_answer": "A"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "What is 3 + (-10)? ➕",
      "options": { "A": "13", "B": "7", "C": "-7", "D": "-13" },
      "correct_answer": "C"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "What is (-7) - 2? ➖",
      "options": { "A": "-5", "B": "-9", "C": "5", "D": "9" },
      "correct_answer": "B"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "What is 4 - (-3)? ➕",
      "options": { "A": "1", "B": "7", "C": "-1", "D": "-7" },
      "correct_answer": "B"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "What is (-5) + 8? 🔄",
      "options": { "A": "13", "B": "3", "C": "-3", "D": "-13" },
      "correct_answer": "B"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "What is (-12) + 7 - (-3)? 🔄",
      "options": { "A": "-2", "B": "-8", "C": "2", "D": "-22" },
      "correct_answer": "A"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Simplify: 15 - 20 + 8 - (-3). 🧮",
      "options": { "A": "6", "B": "0", "C": "-6", "D": "10" },
      "correct_answer": "A"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "What is (-5) × 3 + 10? ✖️➕",
      "options": { "A": "25", "B": "-5", "C": "5", "D": "-25" },
      "correct_answer": "B"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "Find x if x + (-8) = -15. 🔍",
      "options": { "A": "7", "B": "-7", "C": "23", "D": "-23" },
      "correct_answer": "B"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "What is 24 ÷ (-6) + (-2)? ➗➕",
      "options": { "A": "-6", "B": "6", "C": "2", "D": "-2" },
      "correct_answer": "A"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Simplify: (-9) - (-4) + (-7). 🔄",
      "options": { "A": "-12", "B": "12", "C": "-20", "D": "20" },
      "correct_answer": "A"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "What is the sum of -18 and 25? ➕",
      "options": { "A": "-43", "B": "43", "C": "7", "D": "-7" },
      "correct_answer": "C"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Find y if y - (-6) = -4. 🔎",
      "options": { "A": "10", "B": "-10", "C": "2", "D": "-2" },
      "correct_answer": "B"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Calculate: (-3) × (-4) - 5 × 2. ✖️➖",
      "options": { "A": "2", "B": "-2", "C": "22", "D": "-22" },
      "correct_answer": "A"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "What is 16 + (-20) - (-8)? 🔄",
      "options": { "A": "4", "B": "-4", "C": "12", "D": "-12" },
      "correct_answer": "A"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Simplify: 5 - [3 + (-7)] - (-2). 🧩",
      "options": { "A": "11", "B": "1", "C": "-1", "D": "-11" },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "What is (-45) ÷ 9 + (-3) × 2? ➗✖️",
      "options": { "A": "-11", "B": "11", "C": "-19", "D": "19" },
      "correct_answer": "A"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "Find z if (-12) + z = 5. 🔍",
      "options": { "A": "-17", "B": "17", "C": "7", "D": "-7" },
      "correct_answer": "B"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Calculate: 7 - (-9) + (-4) - 5. 🔄",
      "options": { "A": "7", "B": "17", "C": "-7", "D": "-17" },
      "correct_answer": "A"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "What is (-6) × [(-2) + 5]? ✖️",
      "options": { "A": "-18", "B": "18", "C": "42", "D": "-42" },
      "correct_answer": "A"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Simplify: (-8) - (-10) + (-3) - 7. 🧮",
      "options": { "A": "-8", "B": "8", "C": "12", "D": "-12" },
      "correct_answer": "A"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Find a if a - 8 = -15. 🔎",
      "options": { "A": "7", "B": "-7", "C": "23", "D": "-23" },
      "correct_answer": "B"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "What is 20 ÷ (-4) - (-3)? ➗➖",
      "options": { "A": "-2", "B": "2", "C": "-8", "D": "8" },
      "correct_answer": "A"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "Calculate: (-5) + (-3) × 4 - (-6). ✖️➖",
      "options": { "A": "-11", "B": "11", "C": "-23", "D": "23" },
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "What is the difference between -12 and 8? ➖",
      "options": { "A": "-20", "B": "20", "C": "-4", "D": "4" },
      "correct_answer": "A"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Simplify: [(-5) × (-4)] - [12 ÷ (-3)] + (-7). 🧠",
      "options": { "A": "17", "B": "7", "C": "-7", "D": "-17" },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Find x: 3x - 7 = -22 (where x is integer). 🔍",
      "options": { "A": "5", "B": "-5", "C": "29", "D": "-29" },
      "correct_answer": "B"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Calculate: (-2)³ + 5 × (-3) - (-8). 📐",
      "options": { "A": "-15", "B": "15", "C": "-9", "D": "9" },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "Simplify: 15 - {(-6) + [4 - (-9)]}. 🧩",
      "options": { "A": "8", "B": "-8", "C": "22", "D": "-22" },
      "correct_answer": "A"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "What is [(-18) ÷ (-2)] × [(-5) + 3] - 4? 🔄",
      "options": { "A": "-22", "B": "22", "C": "14", "D": "-14" },
      "correct_answer": "A"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "Find y: (-4)y + 9 = -19. 🔎",
      "options": { "A": "7", "B": "-7", "C": "28", "D": "-28" },
      "correct_answer": "A"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Calculate: (-1)¹⁰⁰ - (-1)⁹⁹ + 5 × (-2). 🔢",
      "options": { "A": "-8", "B": "8", "C": "12", "D": "-12" },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "Simplify: 25 ÷ (-5) + {(-3) × [6 - (-4)]} - 7. 🧮",
      "options": { "A": "-42", "B": "42", "C": "-32", "D": "32" },
      "correct_answer": "A"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "Find two integers whose sum is -8 and product is 15. 🎯",
      "options": {
        "A": "-3 and -5",
        "B": "3 and -5",
        "C": "-3 and 5",
        "D": "3 and 5"
      },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "What is (-12) × [(-3) + (-7)] ÷ (-5) - 4? 🔄",
      "options": {
        "A": "20",
        "B": "-20",
        "C": "28",
        "D": "-28"
      },
      "correct_answer": "D"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "If a = -3, b = 4, c = -2, find a² + b² - c². 📐",
      "options": { "A": "21", "B": "-21", "C": "29", "D": "-29" },
      "correct_answer": "A"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "Simplify: {(-8) + [12 - (-3)]} × {(-4) - [(-6) ÷ 2]}. 🧩",
      "options": {
        "A": "-7",
        "B": "7",
        "C": "-49",
        "D": "49"
      },
      "correct_answer": "A"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Find x: (-5)x - 12 = 3x + 20. 🔍",
      "options": { "A": "4", "B": "-4", "C": "2", "D": "-2" },
      "correct_answer": "B"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Calculate: [(-2)⁴ ÷ 4] - [(-3)² × (-1)] + 7. 📊",
      "options": { "A": "20", "B": "-20", "C": "12", "D": "-12" },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "The sum of three consecutive integers is -12. Find the largest integer. 🔢",
      "options": { "A": "-3", "B": "-4", "C": "-5", "D": "-6" },
      "correct_answer": "A"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Simplify: (-1) × {(-2) + [(-3) × 4 - (-10)]} ÷ 2. 🧠",
      "options": { "A": "2", "B": "-2", "C": "4", "D": "-4" },
      "correct_answer": "A"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "If p + q = -7 and p - q = 3, find p × q. 🎲",
      "options": {
        "A": "10",
        "B": "-10",
        "C": "40",
        "D": "-40"
      },
      "correct_answer": "A"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "Calculate: (-48) ÷ [(-6) + (-2)] × (-3) - (-9). 🔄",
      "options": { "A": "-9", "B": "9", "C": "-27", "D": "27" },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Find two integers with difference 8 and sum -6. ➕➖",
      "options": {
        "A": "1 and -7",
        "B": "-1 and -5",
        "C": "2 and -10",
        "D": "-2 and -4"
      },
      "correct_answer": "A"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Simplify: [(-5) × 8 - (-40)] ÷ [(-2)³ + 4 × (-1)] + 6. 🏆",
      "options": { "A": "6", "B": "-6", "C": "0", "D": "12" },
      "correct_answer": "A"
    }
  ]
}