{
  "title": "Rounding and Estimating (Numbers up to Crores) - Grade 5 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "Round 47 to the nearest ten. 🔟",
      "options": { "A": "40", "B": "45", "C": "50", "D": "55" },
      "correct_answer": "C"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "What is 128 rounded to the nearest hundred? 💯",
      "options": { "A": "100", "B": "120", "C": "130", "D": "200" },
      "correct_answer": "A"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "Round 3,456 to the nearest thousand. 🎯",
      "options": { "A": "3000", "B": "3400", "C": "3500", "D": "4000" },
      "correct_answer": "A"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "What is 75 rounded to the nearest ten? 🔢",
      "options": { "A": "70", "B": "75", "C": "80", "D": "85" },
      "correct_answer": "C"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "Round 999 to the nearest hundred. 💯",
      "options": { "A": "900", "B": "990", "C": "1000", "D": "1100" },
      "correct_answer": "C"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "What is 4,501 rounded to the nearest thousand? 🎪",
      "options": { "A": "4000", "B": "4500", "C": "5000", "D": "5500" },
      "correct_answer": "C"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Round 2,345 to the nearest hundred. 📏",
      "options": { "A": "2300", "B": "2340", "C": "2350", "D": "2400" },
      "correct_answer": "A"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "What is 15 rounded to the nearest ten? 🧸",
      "options": { "A": "10", "B": "15", "C": "20", "D": "25" },
      "correct_answer": "C"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "Round 678 to the nearest ten. 🔟",
      "options": { "A": "670", "B": "675", "C": "680", "D": "690" },
      "correct_answer": "C"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "What is 1,234 rounded to the nearest hundred? ✅",
      "options": { "A": "1200", "B": "1230", "C": "1240", "D": "1300" },
      "correct_answer": "A"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Round 5,678 to the nearest thousand. 🎈",
      "options": { "A": "5000", "B": "5600", "C": "5700", "D": "6000" },
      "correct_answer": "D"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "What is 99 rounded to the nearest ten? ✨",
      "options": { "A": "90", "B": "95", "C": "100", "D": "110" },
      "correct_answer": "C"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "Round 450 to the nearest hundred. 🎯",
      "options": { "A": "400", "B": "450", "C": "500", "D": "550" },
      "correct_answer": "C"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "What is 7,777 rounded to the nearest thousand? 🔢",
      "options": { "A": "7000", "B": "7700", "C": "7800", "D": "8000" },
      "correct_answer": "D"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "Round 333 to the nearest ten. 🧮",
      "options": { "A": "330", "B": "333", "C": "335", "D": "340" },
      "correct_answer": "A"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "What is 8,950 rounded to the nearest hundred? 💯",
      "options": { "A": "8900", "B": "8950", "C": "9000", "D": "9050" },
      "correct_answer": "C"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "Round 1,005 to the nearest ten. 🔟",
      "options": { "A": "1000", "B": "1005", "C": "1010", "D": "1100" },
      "correct_answer": "A"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "What is 6,499 rounded to the nearest thousand? 🎪",
      "options": { "A": "6000", "B": "6490", "C": "6500", "D": "7000" },
      "correct_answer": "A"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Round 250 to the nearest hundred. 📐",
      "options": { "A": "200", "B": "250", "C": "300", "D": "350" },
      "correct_answer": "C"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "What is 123,456 rounded to the nearest thousand? 🚀",
      "options": { "A": "123000", "B": "123400", "C": "123500", "D": "124000" },
      "correct_answer": "A"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "Estimate the sum of 347 + 582 by rounding to the nearest ten. ➕",
      "options": { "A": "920", "B": "930", "C": "940", "D": "950" },
      "correct_answer": "B"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "Estimate 4,567 - 2,345 by rounding to the nearest hundred. ➖",
      "options": {
        "A": "2200",
        "B": "2300",
        "C": "2400",
        "D": "2500"
      },
      "correct_answer": "B"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Round 78,945 to the nearest thousand. 🎯",
      "options": { "A": "78000", "B": "78500", "C": "79000", "D": "79500" },
      "correct_answer": "C"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "What is 456,789 rounded to the nearest ten thousand? 🔟",
      "options": { "A": "450000", "B": "456000", "C": "460000", "D": "500000" },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Estimate the product of 48 × 32 by rounding to the nearest ten. ✖️",
      "options": { "A": "1400", "B": "1500", "C": "1600", "D": "1700" },
      "correct_answer": "B"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "Round 9,99,999 to the nearest lakh. 💰",
      "options": {
        "A": "9,00,000",
        "B": "9,50,000",
        "C": "9,90,000",
        "D": "10,00,000"
      },
      "correct_answer": "D"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "What is 12,34,567 rounded to the nearest lakh? 🎪",
      "options": {
        "A": "12,00,000",
        "B": "12,30,000",
        "C": "12,35,000",
        "D": "13,00,000"
      },
      "correct_answer": "A"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "Estimate the sum of 2,345 + 6,789 by rounding to the nearest hundred. ➕",
      "options": { "A": "9100", "B": "9200", "C": "9300", "D": "9400" },
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Round 55,555 to the nearest hundred. 💯",
      "options": {
        "A": "55,400",
        "B": "55,500",
        "C": "55,600",
        "D": "56,000"
      },
      "correct_answer": "C"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "What is 7,65,432 rounded to the nearest ten thousand? 🔢",
      "options": {
        "A": "7,60,000",
        "B": "7,65,000",
        "C": "7,70,000",
        "D": "7,75,000"
      },
      "correct_answer": "C"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Estimate 89 × 42 by rounding to the nearest ten. 🧮",
      "options": { "A": "3600", "B": "3700", "C": "3800", "D": "3900" },
      "correct_answer": "A"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Round 4,44,444 to the nearest lakh. 📊",
      "options": {
        "A": "4,00,000",
        "B": "4,40,000",
        "C": "4,44,000",
        "D": "4,50,000"
      },
      "correct_answer": "A"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "What is 3,21,098 rounded to the nearest thousand? 🎯",
      "options": {
        "A": "3,20,000",
        "B": "3,21,000",
        "C": "3,21,100",
        "D": "3,22,000"
      },
      "correct_answer": "B"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "Estimate the difference between 9,876 and 4,321 by rounding to the nearest hundred. ➖",
      "options": { "A": "5500", "B": "5600", "C": "5700", "D": "5800" },
      "correct_answer": "B"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "Round 6,66,666 to the nearest ten thousand. 🔟",
      "options": {
        "A": "6,60,000",
        "B": "6,66,000",
        "C": "6,67,000",
        "D": "6,70,000"
      },
      "correct_answer": "D"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "What is 8,88,888 rounded to the nearest lakh? 💰",
      "options": {
        "A": "8,00,000",
        "B": "8,80,000",
        "C": "8,88,000",
        "D": "9,00,000"
      },
      "correct_answer": "D"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "Estimate 123 × 45 by rounding to the nearest ten. ✖️",
      "options": {
        "A": "5000",
        "B": "5400",
        "C": "5800",
        "D": "6000"
      },
      "correct_answer": "D"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Round 2,99,999 to the nearest thousand. 🎪",
      "options": {
        "A": "2,99,000",
        "B": "2,99,900",
        "C": "3,00,000",
        "D": "3,00,100"
      },
      "correct_answer": "C"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "What is 5,55,555 rounded to the nearest hundred? 💯",
      "options": {
        "A": "5,55,500",
        "B": "5,55,550",
        "C": "5,55,600",
        "D": "5,56,000"
      },
      "correct_answer": "C"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "Estimate the sum of 56,789 + 43,211 by rounding to the nearest thousand. ➕",
      "options": {
        "A": "99,000",
        "B": "100,000",
        "C": "101,000",
        "D": "102,000"
      },
      "correct_answer": "B"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "Estimate the product of 789 × 654 by rounding to the nearest hundred. ✖️",
      "options": {
        "A": "5,00,000",
        "B": "5,40,000",
        "C": "5,60,000",
        "D": "6,00,000"
      },
      "correct_answer": "C"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "Round 45,67,890 to the nearest lakh. 🎯",
      "options": {
        "A": "45,00,000",
        "B": "45,50,000",
        "C": "45,60,000",
        "D": "46,00,000"
      },
      "correct_answer": "D"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "What is 99,99,999 rounded to the nearest ten lakh? 🔟",
      "options": {
        "A": "99,00,000",
        "B": "99,90,000",
        "C": "99,99,000",
        "D": "1,00,00,000"
      },
      "correct_answer": "D"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "Estimate the sum of 12,34,567 + 8,76,543 by rounding to the nearest lakh. ➕",
      "options": {
        "A": "20,00,000",
        "B": "21,00,000",
        "C": "22,00,000",
        "D": "23,00,000"
      },
      "correct_answer": "B"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "Round 3,45,67,890 to the nearest crore. 💰",
      "options": {
        "A": "3,00,00,000",
        "B": "3,40,00,000",
        "C": "3,45,00,000",
        "D": "4,00,00,000"
      },
      "correct_answer": "A"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "What is 7,89,45,678 rounded to the nearest ten lakh? 🔢",
      "options": {
        "A": "7,89,00,000",
        "B": "7,90,00,000",
        "C": "7,89,40,000",
        "D": "7,89,50,000"
      },
      "correct_answer": "B"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "Estimate the difference between 9,87,65,432 and 4,32,10,987 by rounding to the nearest crore. ➖",
      "options": {
        "A": "5,00,00,000",
        "B": "5,50,00,000",
        "C": "6,00,00,000",
        "D": "6,50,00,000"
      },
      "correct_answer": "C"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "Round 1,23,45,678 to the nearest million. 🎪",
      "options": {
        "A": "1,10,00,000",
        "B": "1,20,00,000",
        "C": "1,30,00,000",
        "D": "1,00,00,000"
      },
      "correct_answer": "B"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "What is 8,76,54,321 rounded to the nearest crore? 💯",
      "options": {
        "A": "8,00,00,000",
        "B": "8,70,00,000",
        "C": "8,76,00,000",
        "D": "9,00,00,000"
      },
      "correct_answer": "D"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Estimate 56,789 × 123 by rounding to the nearest thousand and hundred respectively. ✖️",
      "options": {
        "A": "55,00,000",
        "B": "57,00,000",
        "C": "60,00,000",
        "D": "65,00,000"
      },
      "correct_answer": "B"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "Round 4,99,99,999 to the nearest ten lakh. 🔟",
      "options": {
        "A": "4,99,00,000",
        "B": "4,99,90,000",
        "C": "4,99,99,000",
        "D": "5,00,00,000"
      },
      "correct_answer": "D"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "What is 6,66,66,666 rounded to the nearest crore? 🎯",
      "options": {
        "A": "6,00,00,000",
        "B": "6,60,00,000",
        "C": "6,66,00,000",
        "D": "7,00,00,000"
      },
      "correct_answer": "D"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "Estimate the sum of 3,45,67,890 + 2,54,32,110 by rounding to the nearest ten lakh. ➕",
      "options": {
        "A": "5,90,00,000",
        "B": "6,00,00,000",
        "C": "6,10,00,000",
        "D": "6,20,00,000"
      },
      "correct_answer": "B"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "Round 9,45,67,890 to the nearest million. 💰",
      "options": {
        "A": "9,40,00,000",
        "B": "9,45,00,000",
        "C": "9,50,00,000",
        "D": "10,00,00,000"
      },
      "correct_answer": "C"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "What is 2,34,56,789 rounded to the nearest ten lakh? 🔢",
      "options": {
        "A": "2,00,00,000",
        "B": "2,10,00,000",
        "C": "2,30,00,000",
        "D": "2,40,00,000"
      },
      "correct_answer": "C"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "Estimate the product of 8,765 × 4,321 by rounding to the nearest hundred. ✖️",
      "options": {
        "A": "3,60,00,000",
        "B": "3,80,00,000",
        "C": "4,00,00,000",
        "D": "4,20,00,000"
      },
      "correct_answer": "B"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "Round 7,77,77,777 to the nearest crore. 🎪",
      "options": {
        "A": "7,00,00,000",
        "B": "7,70,00,000",
        "C": "7,77,00,000",
        "D": "8,00,00,000"
      },
      "correct_answer": "D"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "What is 1,11,11,111 rounded to the nearest ten lakh? 🔟",
      "options": {
        "A": "1,10,00,000",
        "B": "1,11,00,000",
        "C": "1,11,10,000",
        "D": "1,12,00,000"
      },
      "correct_answer": "B"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "Estimate the difference between 8,76,54,321 and 3,45,67,890 by rounding to the nearest ten lakh. ➖",
      "options": {
        "A": "5,30,00,000",
        "B": "5,40,00,000",
        "C": "5,50,00,000",
        "D": "5,60,00,000"
      },
      "correct_answer": "A"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "Round 5,55,55,555 to the nearest million. 💯",
      "options": {
        "A": "5,00,00,000",
        "B": "5,50,00,000",
        "C": "5,60,00,000",
        "D": "6,00,00,000"
      },
      "correct_answer": "C"
    }
  ]
}