{
  "title": "Addition Using Number Line",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "On a number line, what is 2 + 1?",
      "options": {
        "A": "4",
        "B": "3",
        "C": "1",
        "D": "5"
      },
      "correct_answer": "B"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "On a number line, what is 3 + 1?",
      "options": {
        "A": "5",
        "B": "2",
        "C": "4",
        "D": "6"
      },
      "correct_answer": "C"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "What is 1 + 2 using a number line?",
      "options": {
        "A": "2",
        "B": "5",
        "C": "3",
        "D": "4"
      },
      "correct_answer": "C"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "On a number line, what is 4 + 1?",
      "options": {
        "A": "6",
        "B": "3",
        "C": "4",
        "D": "5"
      },
      "correct_answer": "D"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "What is 5 + 2 on a number line?",
      "options": {
        "A": "6",
        "B": "8",
        "C": "7",
        "D": "4"
      },
      "correct_answer": "C"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "Using a number line, what is 2 + 3?",
      "options": {
        "A": "4",
        "B": "6",
        "C": "5",
        "D": "7"
      },
      "correct_answer": "C"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "Find 1 + 4 on a number line.",
      "options": {
        "A": "6",
        "B": "4",
        "C": "5",
        "D": "7"
      },
      "correct_answer": "C"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "What is 3 + 2?",
      "options": {
        "A": "7",
        "B": "6",
        "C": "4",
        "D": "5"
      },
      "correct_answer": "D"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "On a number line, what is 0 + 3?",
      "options": {
        "A": "3",
        "B": "1",
        "C": "2",
        "D": "4"
      },
      "correct_answer": "A"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "What is 4 + 2?",
      "options": {
        "A": "5",
        "B": "8",
        "C": "7",
        "D": "6"
      },
      "correct_answer": "D"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "Find 2 + 4 on a number line.",
      "options": {
        "A": "8",
        "B": "6",
        "C": "5",
        "D": "7"
      },
      "correct_answer": "B"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "What is 3 + 3?",
      "options": {
        "A": "7",
        "B": "5",
        "C": "6",
        "D": "8"
      },
      "correct_answer": "C"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "What is 1 + 5?",
      "options": {
        "A": "7",
        "B": "5",
        "C": "6",
        "D": "4"
      },
      "correct_answer": "C"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "What is 0 + 5?",
      "options": {
        "A": "3",
        "B": "6",
        "C": "5",
        "D": "4"
      },
      "correct_answer": "C"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "What is 2 + 5?",
      "options": {
        "A": "8",
        "B": "6",
        "C": "5",
        "D": "7"
      },
      "correct_answer": "D"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "What is 4 + 3 on a number line?",
      "options": {
        "A": "6",
        "B": "8",
        "C": "7",
        "D": "9"
      },
      "correct_answer": "C"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "On a number line, what is 1 + 3?",
      "options": {
        "A": "5",
        "B": "3",
        "C": "4",
        "D": "2"
      },
      "correct_answer": "C"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "What is 3 + 4?",
      "options": {
        "A": "8",
        "B": "6",
        "C": "5",
        "D": "7"
      },
      "correct_answer": "D"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "Using number line, what is 5 + 1?",
      "options": {
        "A": "7",
        "B": "5",
        "C": "6",
        "D": "8"
      },
      "correct_answer": "C"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "What is 6 + 1?",
      "options": {
        "A": "8",
        "B": "7",
        "C": "6",
        "D": "5"
      },
      "correct_answer": "B"
    },
    {
      "id": 21,
      "difficulty": "medium",
      "question": "On the number line, what is 6 + 3?",
      "options": {
        "A": "8",
        "B": "9",
        "C": "7",
        "D": "10"
      },
      "correct_answer": "B"
    },
    {
      "question_id": "22",
      "question": "What is 5 + 4 on a number line?",
      "options": {
        "A": "10",
        "B": "8",
        "C": "9",
        "D": "7"
      },
      "correct_answer": "C",
      "id": 22,
      "difficulty": "medium"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "Using a number line, find 7 + 2.",
      "options": {
        "A": "9",
        "B": "10",
        "C": "8",
        "D": "11"
      },
      "correct_answer": "A"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "What is 8 + 3?",
      "options": {
        "A": "12",
        "B": "10",
        "C": "11",
        "D": "13"
      },
      "correct_answer": "C"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "Using the number line, find 4 + 5.",
      "options": {
        "A": "8",
        "B": "9",
        "C": "10",
        "D": "7"
      },
      "correct_answer": "B"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "What is 3 + 6?",
      "options": {
        "A": "7",
        "B": "9",
        "C": "8",
        "D": "10"
      },
      "correct_answer": "B"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "On a number line, calculate 2 + 7.",
      "options": {
        "A": "8",
        "B": "10",
        "C": "9",
        "D": "11"
      },
      "correct_answer": "C"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "What is 6 + 4?",
      "options": {
        "A": "10",
        "B": "12",
        "C": "9",
        "D": "11"
      },
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "Find 5 + 6 on a number line.",
      "options": {
        "A": "12",
        "B": "10",
        "C": "11",
        "D": "13"
      },
      "correct_answer": "C"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "What is 7 + 5?",
      "options": {
        "A": "11",
        "B": "13",
        "C": "12",
        "D": "10"
      },
      "correct_answer": "C"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "Using number line, what is 9 + 2?",
      "options": {
        "A": "10",
        "B": "12",
        "C": "11",
        "D": "13"
      },
      "correct_answer": "C"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "Solve 4 + 7 using number line.",
      "options": {
        "A": "10",
        "B": "11",
        "C": "12",
        "D": "9"
      },
      "correct_answer": "B"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "What is 3 + 8?",
      "options": {
        "A": "10",
        "B": "11",
        "C": "12",
        "D": "9"
      },
      "correct_answer": "B"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "What is 1 + 9?",
      "options": {
        "A": "8",
        "B": "10",
        "C": "11",
        "D": "9"
      },
      "correct_answer": "B"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "What is 8 + 4?",
      "options": {
        "A": "13",
        "B": "11",
        "C": "14",
        "D": "12"
      },
      "correct_answer": "D"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "Using number line, find 6 + 5.",
      "options": {
        "A": "10",
        "B": "11",
        "C": "12",
        "D": "13"
      },
      "correct_answer": "B"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "What is 2 + 8?",
      "options": {
        "A": "11",
        "B": "9",
        "C": "10",
        "D": "12"
      },
      "correct_answer": "C"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "Find 3 + 7 on a number line.",
      "options": {
        "A": "11",
        "B": "9",
        "C": "10",
        "D": "12"
      },
      "correct_answer": "C"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "What is 4 + 8?",
      "options": {
        "A": "12",
        "B": "14",
        "C": "13",
        "D": "11"
      },
      "correct_answer": "A"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "What is 7 + 6?",
      "options": {
        "A": "15",
        "B": "12",
        "C": "14",
        "D": "13"
      },
      "correct_answer": "D"
    },
    {
      "id": 41,
      "difficulty": "hard",
      "question": "On a number line, what is 9 + 5?",
      "options": {
        "A": "13",
        "B": "15",
        "C": "14",
        "D": "12"
      },
      "correct_answer": "C"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "What is 8 + 6 on a number line?",
      "options": {
        "A": "14",
        "B": "13",
        "C": "15",
        "D": "12"
      },
      "correct_answer": "A"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "Using number line, find 7 + 8.",
      "options": {
        "A": "16",
        "B": "15",
        "C": "14",
        "D": "13"
      },
      "correct_answer": "B"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "What is 6 + 9?",
      "options": {
        "A": "14",
        "B": "16",
        "C": "15",
        "D": "13"
      },
      "correct_answer": "C"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "On the number line, find 5 + 10.",
      "options": {
        "A": "14",
        "B": "13",
        "C": "15",
        "D": "12"
      },
      "correct_answer": "C"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "What is 4 + 11?",
      "options": {
        "A": "13",
        "B": "15",
        "C": "14",
        "D": "12"
      },
      "correct_answer": "B"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "What is 3 + 12?",
      "options": {
        "A": "16",
        "B": "14",
        "C": "15",
        "D": "13"
      },
      "correct_answer": "C"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "Find 9 + 7 on the number line.",
      "options": {
        "A": "17",
        "B": "15",
        "C": "16",
        "D": "14"
      },
      "correct_answer": "C"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "What is 8 + 9?",
      "options": {
        "A": "17",
        "B": "15",
        "C": "18",
        "D": "16"
      },
      "correct_answer": "A"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "Using number line, solve 6 + 11.",
      "options": {
        "A": "18",
        "B": "16",
        "C": "17",
        "D": "15"
      },
      "correct_answer": "C"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "What is 7 + 10?",
      "options": {
        "A": "18",
        "B": "17",
        "C": "15",
        "D": "16"
      },
      "correct_answer": "B"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "What is 5 + 12?",
      "options": {
        "A": "16",
        "B": "18",
        "C": "17",
        "D": "15"
      },
      "correct_answer": "C"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "On a number line, find 4 + 14.",
      "options": {
        "A": "17",
        "B": "18",
        "C": "16",
        "D": "19"
      },
      "correct_answer": "B"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "What is 3 + 15?",
      "options": {
        "A": "18",
        "B": "19",
        "C": "17",
        "D": "16"
      },
      "correct_answer": "A"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "Find 9 + 10 using number line.",
      "options": {
        "A": "20",
        "B": "18",
        "C": "19",
        "D": "17"
      },
      "correct_answer": "C"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "What is 8 + 11?",
      "options": {
        "A": "21",
        "B": "20",
        "C": "18",
        "D": "19"
      },
      "correct_answer": "D"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "What is 7 + 12?",
      "options": {
        "A": "19",
        "B": "20",
        "C": "18",
        "D": "17"
      },
      "correct_answer": "A"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "Solve 6 + 13 using number line.",
      "options": {
        "A": "19",
        "B": "20",
        "C": "21",
        "D": "22"
      },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "What is 5 + 15?",
      "options": {
        "A": "19",
        "B": "21",
        "C": "20",
        "D": "18"
      },
      "correct_answer": "C"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "What is 9 + 12?",
      "options": {
        "A": "20",
        "B": "21",
        "C": "22",
        "D": "19"
      },
      "correct_answer": "B"
    }
  ]
}