{
  "title": "Addition of Integers - Grade 7 CBSE",
  "total_questions": 150,
  "questions": [

   
    {"id": 1, "difficulty": "easy", "question": "What is 5 + 3?", "options": {"A": "8", "B": "7", "C": "9", "D": "6"}, "correct_answer": "A"},
    {"id": 2, "difficulty": "easy", "question": "What is -4 + 6?", "options": {"A": "1", "B": "2", "C": "-2", "D": "10"}, "correct_answer": "B"},
    {"id": 3, "difficulty": "easy", "question": "What is -3 + -5?", "options": {"A": "-5", "B": "-6", "C": "-8", "D": "-2"}, "correct_answer": "C"},
    {"id": 4, "difficulty": "easy", "question": "What is 7 + -2?", "options": {"A": "3", "B": "4", "C": "5", "D": "6"}, "correct_answer": "D"},
    {"id": 5, "difficulty": "easy", "question": "What is 10 + -4?", "options": {"A": "6", "B": "4", "C": "5", "D": "8"}, "correct_answer": "A"},
    {"id": 6, "difficulty": "easy", "question": "What is -7 + 3?", "options": {"A": "-3", "B": "-2", "C": "-4", "D": "-1"}, "correct_answer": "B"},
    {"id": 7, "difficulty": "easy", "question": "What is -2 + -9?", "options": {"A": "-9", "B": "-10", "C": "-11", "D": "-8"}, "correct_answer": "C"},
    {"id": 8, "difficulty": "easy", "question": "What is 6 + -3?", "options": {"A": "2", "B": "1", "C": "3", "D": "0"}, "correct_answer": "D"},
    {"id": 9, "difficulty": "easy", "question": "What is -1 + 9?", "options": {"A": "9", "B": "7", "C": "8", "D": "10"}, "correct_answer": "A"},
    {"id": 10, "difficulty": "easy", "question": "What is -8 + 5?", "options": {"A": "-2", "B": "-1", "C": "-3", "D": "-4"}, "correct_answer": "B"},
    {"id": 11, "difficulty": "easy", "question": "What is 12 + -6?", "options": {"A": "4", "B": "5", "C": "6", "D": "3"}, "correct_answer": "C"},
    {"id": 12, "difficulty": "easy", "question": "What is -10 + -3?", "options": {"A": "-12", "B": "-11", "C": "-13", "D": "-14"}, "correct_answer": "D"},
    {"id": 13, "difficulty": "easy", "question": "What is 3 + -7?", "options": {"A": "-2", "B": "-3", "C": "-4", "D": "-5"}, "correct_answer": "A"},
    {"id": 14, "difficulty": "easy", "question": "What is 4 + 9?", "options": {"A": "10", "B": "11", "C": "13", "D": "9"}, "correct_answer": "B"},
    {"id": 15, "difficulty": "easy", "question": "What is -6 + 2?", "options": {"A": "-5", "B": "-3", "C": "-4", "D": "-2"}, "correct_answer": "C"},
    {"id": 16, "difficulty": "easy", "question": "What is -4 + 10?", "options": {"A": "7", "B": "6", "C": "8", "D": "5"}, "correct_answer": "D"},
    {"id": 17, "difficulty": "easy", "question": "What is -9 + -1?", "options": {"A": "-11", "B": "-9", "C": "-10", "D": "-8"}, "correct_answer": "A"},
    {"id": 18, "difficulty": "easy", "question": "What is 15 + -5?", "options": {"A": "9", "B": "10", "C": "12", "D": "13"}, "correct_answer": "B"},
    {"id": 19, "difficulty": "easy", "question": "What is 20 + -7?", "options": {"A": "13", "B": "12", "C": "11", "D": "14"}, "correct_answer": "C"},
    {"id": 20, "difficulty": "easy", "question": "What is -12 + 8?", "options": {"A": "-5", "B": "-4", "C": "-3", "D": "-2"}, "correct_answer": "D"},

  
    {"id": 21, "difficulty": "medium", "question": "What is 15 + -9?", "options": {"A": "7", "B": "6", "C": "5", "D": "8"}, "correct_answer": "A"},
    {"id": 22, "difficulty": "medium", "question": "What is -14 + 12?", "options": {"A": "-3", "B": "-2", "C": "-1", "D": "0"}, "correct_answer": "B"},
    {"id": 23, "difficulty": "medium", "question": "What is -11 + -7?", "options": {"A": "-15", "B": "-17", "C": "-18", "D": "-19"}, "correct_answer": "C"},
    {"id": 24, "difficulty": "medium", "question": "What is 22 + -13?", "options": {"A": "7", "B": "8", "C": "9", "D": "10"}, "correct_answer": "D"},
    {"id": 25, "difficulty": "medium", "question": "What is -25 + 9?", "options": {"A": "-14", "B": "-16", "C": "-15", "D": "-17"}, "correct_answer": "A"},
    {"id": 26, "difficulty": "medium", "question": "What is 30 + -12?", "options": {"A": "19", "B": "18", "C": "20", "D": "17"}, "correct_answer": "B"},
    {"id": 27, "difficulty": "medium", "question": "What is -18 + -5?", "options": {"A": "-20", "B": "-21", "C": "-23", "D": "-22"}, "correct_answer": "C"},
    {"id": 28, "difficulty": "medium", "question": "What is -32 + 14?", "options": {"A": "-19", "B": "-18", "C": "-20", "D": "-17"}, "correct_answer": "D"},
    {"id": 29, "difficulty": "medium", "question": "What is 40 + -27?", "options": {"A": "10", "B": "12", "C": "13", "D": "14"}, "correct_answer": "A"},
    {"id": 30, "difficulty": "medium", "question": "What is -21 + 16?", "options": {"A": "-6", "B": "-5", "C": "-4", "D": "-3"}, "correct_answer": "B"},
    {"id": 31, "difficulty": "medium", "question": "What is -29 + -11?", "options": {"A": "-38", "B": "-39", "C": "-40", "D": "-41"}, "correct_answer": "C"},
    {"id": 32, "difficulty": "medium", "question": "What is 33 + -19?", "options": {"A": "13", "B": "14", "C": "12", "D": "15"}, "correct_answer": "D"},
    {"id": 33, "difficulty": "medium", "question": "What is -45 + 22?", "options": {"A": "-22", "B": "-23", "C": "-24", "D": "-25"}, "correct_answer": "A"},
    {"id": 34, "difficulty": "medium", "question": "What is 50 + -33?", "options": {"A": "18", "B": "17", "C": "16", "D": "15"}, "correct_answer": "B"},
    {"id": 35, "difficulty": "medium", "question": "What is -39 + -14?", "options": {"A": "-53", "B": "-51", "C": "-52", "D": "-54"}, "correct_answer": "C"},
    {"id": 36, "difficulty": "medium", "question": "What is 61 + -29?", "options": {"A": "32", "B": "33", "C": "31", "D": "30"}, "correct_answer": "D"},
    {"id": 37, "difficulty": "medium", "question": "What is -52 + 17?", "options": {"A": "-34", "B": "-35", "C": "-36", "D": "-37"}, "correct_answer": "A"},
    {"id": 38, "difficulty": "medium", "question": "What is 70 + -48?", "options": {"A": "20", "B": "21", "C": "22", "D": "23"}, "correct_answer": "B"},
    {"id": 39, "difficulty": "medium", "question": "What is -65 + -12?", "options": {"A": "-74", "B": "-75", "C": "-77", "D": "-76"}, "correct_answer": "C"},
    {"id": 40, "difficulty": "medium", "question": "What is 80 + -39?", "options": {"A": "41", "B": "42", "C": "40", "D": "43"}, "correct_answer": "D"},

 
    {"id": 41, "difficulty": "hard", "question": "What is -95 + 48?", "options": {"A": "-47", "B": "-46", "C": "-45", "D": "-44"}, "correct_answer": "A"},
    {"id": 42, "difficulty": "hard", "question": "What is 120 + -78?", "options": {"A": "45", "B": "42", "C": "40", "D": "43"}, "correct_answer": "B"},
    {"id": 43, "difficulty": "hard", "question": "What is -150 + -60?", "options": {"A": "-200", "B": "-210", "C": "-205", "D": "-215"}, "correct_answer": "C"},
    {"id": 44, "difficulty": "hard", "question": "What is 200 + -89?", "options": {"A": "120", "B": "110", "C": "111", "D": "112"}, "correct_answer": "D"},
    {"id": 45, "difficulty": "hard", "question": "What is -180 + 75?", "options": {"A": "-110", "B": "-105", "C": "-100", "D": "-90"}, "correct_answer": "A"},
    {"id": 46, "difficulty": "hard", "question": "What is 250 + -143?", "options": {"A": "107", "B": "108", "C": "109", "D": "110"}, "correct_answer": "B"},
    {"id": 47, "difficulty": "hard", "question": "What is -220 + -130?", "options": {"A": "-330", "B": "-340", "C": "-350", "D": "-360"}, "correct_answer": "C"},
    {"id": 48, "difficulty": "hard", "question": "What is 310 + -175?", "options": {"A": "140", "B": "135", "C": "136", "D": "137"}, "correct_answer": "D"},
    {"id": 49, "difficulty": "hard", "question": "What is -305 + 148?", "options": {"A": "-160", "B": "-157", "C": "-163", "D": "-155"}, "correct_answer": "A"},
    {"id": 50, "difficulty": "hard", "question": "What is 400 + -289?", "options": {"A": "120", "B": "111", "C": "110", "D": "115"}, "correct_answer": "B"},
    {"id": 51, "difficulty": "hard", "question": "What is -500 + -200?", "options": {"A": "-650", "B": "-700", "C": "-750", "D": "-800"}, "correct_answer": "C"},
    {"id": 52, "difficulty": "hard", "question": "What is 520 + -318?", "options": {"A": "210", "B": "202", "C": "200", "D": "205"}, "correct_answer": "D"},
    {"id": 53, "difficulty": "hard", "question": "What is -612 + 259?", "options": {"A": "-350", "B": "-353", "C": "-360", "D": "-340"}, "correct_answer": "A"},
    {"id": 54, "difficulty": "hard", "question": "What is 700 + -468?", "options": {"A": "250", "B": "230", "C": "232", "D": "235"}, "correct_answer": "B"},
    {"id": 55, "difficulty": "hard", "question": "What is -820 + -175?", "options": {"A": "-980", "B": "-990", "C": "-995", "D": "-1000"}, "correct_answer": "C"},
    {"id": 56, "difficulty": "hard", "question": "What is 905 + -512?", "options": {"A": "380", "B": "392", "C": "393", "D": "395"}, "correct_answer": "D"},
    {"id": 57, "difficulty": "hard", "question": "What is -999 + 478?", "options": {"A": "-510", "B": "-520", "C": "-521", "D": "-530"}, "correct_answer": "A"},
    {"id": 58, "difficulty": "hard", "question": "What is 1210 + -680?", "options": {"A": "520", "B": "530", "C": "525", "D": "515"}, "correct_answer": "B"},
    {"id": 59, "difficulty": "hard", "question": "What is -1500 + -325?", "options": {"A": "-1750", "B": "-1800", "C": "-1825", "D": "-1725"}, "correct_answer": "C"},
    {"id": 60, "difficulty": "hard", "question": "What is 2000 + -1456?", "options": {"A": "520", "B": "550", "C": "544", "D": "600"}, "correct_answer": "D"}
,
  {"id":61,"difficulty":"easy","question":"What is 4 + 6?","options":{"A":"9","B":"10","C":"11","D":"8"},"correct_answer":"B"},
  {"id":62,"difficulty":"easy","question":"What is -5 + 9?","options":{"A":"3","B":"5","C":"4","D":"2"},"correct_answer":"C"},
  {"id":63,"difficulty":"easy","question":"What is -6 + -3?","options":{"A":"-8","B":"-9","C":"-7","D":"-6"},"correct_answer":"B"},
  {"id":64,"difficulty":"easy","question":"What is 8 + -3?","options":{"A":"4","B":"6","C":"5","D":"7"},"correct_answer":"C"},
  {"id":65,"difficulty":"easy","question":"What is 14 + -6?","options":{"A":"9","B":"8","C":"7","D":"6"},"correct_answer":"B"},
  {"id":66,"difficulty":"easy","question":"What is -9 + 5?","options":{"A":"-3","B":"-4","C":"-5","D":"-2"},"correct_answer":"B"},
  {"id":67,"difficulty":"easy","question":"What is -7 + -6?","options":{"A":"-12","B":"-11","C":"-13","D":"-10"},"correct_answer":"C"},
  {"id":68,"difficulty":"easy","question":"What is 10 + -7?","options":{"A":"4","B":"2","C":"3","D":"1"},"correct_answer":"C"},
  {"id":69,"difficulty":"easy","question":"What is -2 + 11?","options":{"A":"8","B":"9","C":"10","D":"7"},"correct_answer":"B"},
  {"id":70,"difficulty":"easy","question":"What is -11 + 6?","options":{"A":"-6","B":"-5","C":"-4","D":"-3"},"correct_answer":"B"},
  {"id":71,"difficulty":"easy","question":"What is 18 + -9?","options":{"A":"10","B":"9","C":"8","D":"7"},"correct_answer":"B"},
  {"id":72,"difficulty":"easy","question":"What is -14 + -2?","options":{"A":"-15","B":"-16","C":"-14","D":"-17"},"correct_answer":"B"},
  {"id":73,"difficulty":"easy","question":"What is 5 + -12?","options":{"A":"-6","B":"-8","C":"-7","D":"-5"},"correct_answer":"C"},
  {"id":74,"difficulty":"easy","question":"What is 9 + 8?","options":{"A":"18","B":"16","C":"17","D":"15"},"correct_answer":"C"},
  {"id":75,"difficulty":"easy","question":"What is -10 + 4?","options":{"A":"-7","B":"-5","C":"-6","D":"-4"},"correct_answer":"C"},
  {"id":76,"difficulty":"easy","question":"What is -3 + 12?","options":{"A":"8","B":"9","C":"10","D":"11"},"correct_answer":"B"},
  {"id":77,"difficulty":"easy","question":"What is -15 + -5?","options":{"A":"-18","B":"-19","C":"-20","D":"-21"},"correct_answer":"C"},
  {"id":78,"difficulty":"easy","question":"What is 20 + -11?","options":{"A":"8","B":"9","C":"10","D":"11"},"correct_answer":"B"},
  {"id":79,"difficulty":"easy","question":"What is 25 + -13?","options":{"A":"11","B":"12","C":"13","D":"14"},"correct_answer":"B"},
  {"id":80,"difficulty":"easy","question":"What is -16 + 7?","options":{"A":"-10","B":"-9","C":"-8","D":"-7"},"correct_answer":"B"},
  {"id":81,"difficulty":"easy","question":"What is 30 + -18?","options":{"A":"13","B":"12","C":"11","D":"10"},"correct_answer":"B"},
  {"id":82,"difficulty":"easy","question":"What is -21 + 9?","options":{"A":"-11","B":"-12","C":"-10","D":"-13"},"correct_answer":"B"},
  {"id":83,"difficulty":"easy","question":"What is -4 + -12?","options":{"A":"-15","B":"-16","C":"-17","D":"-14"},"correct_answer":"B"},
  {"id":84,"difficulty":"easy","question":"What is 16 + -9?","options":{"A":"6","B":"7","C":"8","D":"9"},"correct_answer":"B"},
  {"id":85,"difficulty":"easy","question":"What is -18 + 5?","options":{"A":"-14","B":"-13","C":"-12","D":"-11"},"correct_answer":"B"},
  {"id":86,"difficulty":"easy","question":"What is 22 + -7?","options":{"A":"14","B":"15","C":"16","D":"17"},"correct_answer":"B"},
  {"id":87,"difficulty":"easy","question":"What is -24 + -6?","options":{"A":"-28","B":"-30","C":"-29","D":"-31"},"correct_answer":"B"},
  {"id":88,"difficulty":"easy","question":"What is 28 + -19?","options":{"A":"10","B":"9","C":"8","D":"7"},"correct_answer":"B"},
  {"id":89,"difficulty":"easy","question":"What is -27 + 15?","options":{"A":"-11","B":"-12","C":"-13","D":"-10"},"correct_answer":"B"},
  {"id":90,"difficulty":"easy","question":"What is 35 + -21?","options":{"A":"15","B":"14","C":"13","D":"12"},"correct_answer":"B"},

  {"id":91,"difficulty":"medium","question":"What is 48 + -29?","options":{"A":"18","B":"19","C":"20","D":"21"},"correct_answer":"B"},
  {"id":92,"difficulty":"medium","question":"What is -36 + 17?","options":{"A":"-18","B":"-19","C":"-20","D":"-21"},"correct_answer":"B"},
  {"id":93,"difficulty":"medium","question":"What is -42 + -19?","options":{"A":"-60","B":"-61","C":"-59","D":"-62"},"correct_answer":"B"},
  {"id":94,"difficulty":"medium","question":"What is 55 + -38?","options":{"A":"16","B":"17","C":"18","D":"19"},"correct_answer":"B"},
  {"id":95,"difficulty":"medium","question":"What is -64 + 28?","options":{"A":"-35","B":"-36","C":"-37","D":"-34"},"correct_answer":"B"},
  {"id":96,"difficulty":"medium","question":"What is 73 + -46?","options":{"A":"26","B":"27","C":"28","D":"29"},"correct_answer":"B"},
  {"id":97,"difficulty":"medium","question":"What is -58 + -27?","options":{"A":"-84","B":"-85","C":"-86","D":"-83"},"correct_answer":"B"},
  {"id":98,"difficulty":"medium","question":"What is 90 + -57?","options":{"A":"32","B":"33","C":"34","D":"35"},"correct_answer":"B"},
  {"id":99,"difficulty":"medium","question":"What is -75 + 39?","options":{"A":"-35","B":"-36","C":"-37","D":"-34"},"correct_answer":"B"},
  {"id":100,"difficulty":"medium","question":"What is 102 + -68?","options":{"A":"33","B":"34","C":"35","D":"36"},"correct_answer":"B"},

  {"id":101,"difficulty":"medium","question":"What is -84 + -29?","options":{"A":"-112","B":"-113","C":"-114","D":"-111"},"correct_answer":"B"},
  {"id":102,"difficulty":"medium","question":"What is 115 + -79?","options":{"A":"35","B":"36","C":"37","D":"38"},"correct_answer":"B"},
  {"id":103,"difficulty":"medium","question":"What is -96 + 47?","options":{"A":"-50","B":"-49","C":"-48","D":"-47"},"correct_answer":"B"},
  {"id":104,"difficulty":"medium","question":"What is 128 + -94?","options":{"A":"33","B":"34","C":"35","D":"36"},"correct_answer":"B"},
  {"id":105,"difficulty":"medium","question":"What is -135 + -46?","options":{"A":"-180","B":"-181","C":"-182","D":"-179"},"correct_answer":"B"},
  {"id":106,"difficulty":"medium","question":"What is 150 + -117?","options":{"A":"32","B":"33","C":"34","D":"35"},"correct_answer":"B"},
  {"id":107,"difficulty":"medium","question":"What is -168 + 79?","options":{"A":"-88","B":"-89","C":"-90","D":"-91"},"correct_answer":"B"},
  {"id":108,"difficulty":"medium","question":"What is 190 + -126?","options":{"A":"63","B":"64","C":"65","D":"66"},"correct_answer":"B"},
  {"id":109,"difficulty":"medium","question":"What is -210 + -75?","options":{"A":"-284","B":"-285","C":"-286","D":"-283"},"correct_answer":"B"},
  {"id":110,"difficulty":"medium","question":"What is 225 + -169?","options":{"A":"55","B":"56","C":"57","D":"58"},"correct_answer":"B"},
  {"id":111,"difficulty":"medium","question":"What is -248 + 119?","options":{"A":"-128","B":"-129","C":"-130","D":"-127"},"correct_answer":"B"},
  {"id":112,"difficulty":"medium","question":"What is 260 + -187?","options":{"A":"72","B":"73","C":"74","D":"75"},"correct_answer":"B"},
  {"id":113,"difficulty":"medium","question":"What is -300 + -85?","options":{"A":"-384","B":"-385","C":"-386","D":"-383"},"correct_answer":"B"},
  {"id":114,"difficulty":"medium","question":"What is 325 + -246?","options":{"A":"78","B":"79","C":"80","D":"81"},"correct_answer":"B"},
  {"id":115,"difficulty":"medium","question":"What is -360 + 149?","options":{"A":"-210","B":"-211","C":"-212","D":"-209"},"correct_answer":"B"},
  {"id":116,"difficulty":"medium","question":"What is 400 + -318?","options":{"A":"81","B":"82","C":"83","D":"84"},"correct_answer":"B"},
  {"id":117,"difficulty":"medium","question":"What is -425 + -175?","options":{"A":"-599","B":"-600","C":"-601","D":"-598"},"correct_answer":"B"},
  {"id":118,"difficulty":"medium","question":"What is 460 + -379?","options":{"A":"80","B":"81","C":"82","D":"83"},"correct_answer":"B"},
  {"id":119,"difficulty":"medium","question":"What is -512 + 233?","options":{"A":"-278","B":"-279","C":"-280","D":"-277"},"correct_answer":"B"},
  {"id":120,"difficulty":"medium","question":"What is 540 + -421?","options":{"A":"118","B":"119","C":"120","D":"121"},"correct_answer":"B"},

  {"id":121,"difficulty":"hard","question":"What is -650 + -275?","options":{"A":"-924","B":"-925","C":"-926","D":"-923"},"correct_answer":"B"},
  {"id":122,"difficulty":"hard","question":"What is 700 + -489?","options":{"A":"210","B":"211","C":"212","D":"213"},"correct_answer":"B"},
  {"id":123,"difficulty":"hard","question":"What is -812 + 367?","options":{"A":"-444","B":"-445","C":"-446","D":"-443"},"correct_answer":"B"},
  {"id":124,"difficulty":"hard","question":"What is 900 + -658?","options":{"A":"241","B":"242","C":"243","D":"244"},"correct_answer":"B"},
  {"id":125,"difficulty":"hard","question":"What is -1025 + -389?","options":{"A":"-1413","B":"-1414","C":"-1415","D":"-1412"},"correct_answer":"B"},
  {"id":126,"difficulty":"hard","question":"What is 1100 + -847?","options":{"A":"252","B":"253","C":"254","D":"255"},"correct_answer":"B"},
  {"id":127,"difficulty":"hard","question":"What is -1280 + 512?","options":{"A":"-767","B":"-768","C":"-769","D":"-766"},"correct_answer":"B"},
  {"id":128,"difficulty":"hard","question":"What is 1350 + -964?","options":{"A":"385","B":"386","C":"387","D":"388"},"correct_answer":"B"},
  {"id":129,"difficulty":"hard","question":"What is -1500 + -625?","options":{"A":"-2124","B":"-2125","C":"-2126","D":"-2123"},"correct_answer":"B"},
  {"id":130,"difficulty":"hard","question":"What is 1600 + -1179?","options":{"A":"420","B":"421","C":"422","D":"423"},"correct_answer":"B"},
  {"id":131,"difficulty":"hard","question":"What is -1750 + 689?","options":{"A":"-1060","B":"-1061","C":"-1062","D":"-1059"},"correct_answer":"B"},
  {"id":132,"difficulty":"hard","question":"What is 1800 + -1368?","options":{"A":"431","B":"432","C":"433","D":"434"},"correct_answer":"B"},
  {"id":133,"difficulty":"hard","question":"What is -2000 + -875?","options":{"A":"-2874","B":"-2875","C":"-2876","D":"-2873"},"correct_answer":"B"},
  {"id":134,"difficulty":"hard","question":"What is 2150 + -1649?","options":{"A":"500","B":"501","C":"502","D":"503"},"correct_answer":"B"},
  {"id":135,"difficulty":"hard","question":"What is -2300 + 988?","options":{"A":"-1311","B":"-1312","C":"-1313","D":"-1310"},"correct_answer":"B"},
  {"id":136,"difficulty":"hard","question":"What is 2500 + -1987?","options":{"A":"512","B":"513","C":"514","D":"515"},"correct_answer":"B"},
  {"id":137,"difficulty":"hard","question":"What is -2700 + -999?","options":{"A":"-3698","B":"-3699","C":"-3700","D":"-3697"},"correct_answer":"B"},
  {"id":138,"difficulty":"hard","question":"What is 3000 + -2456?","options":{"A":"543","B":"544","C":"545","D":"546"},"correct_answer":"B"},
  {"id":139,"difficulty":"hard","question":"What is -3200 + 1375?","options":{"A":"-1824","B":"-1825","C":"-1826","D":"-1823"},"correct_answer":"B"},
  {"id":140,"difficulty":"hard","question":"What is 3500 + -2819?","options":{"A":"680","B":"681","C":"682","D":"683"},"correct_answer":"B"},
  {"id":141,"difficulty":"hard","question":"What is -3800 + -1525?","options":{"A":"-5324","B":"-5325","C":"-5326","D":"-5323"},"correct_answer":"B"},
  {"id":142,"difficulty":"hard","question":"What is 4200 + -3578?","options":{"A":"621","B":"622","C":"623","D":"624"},"correct_answer":"B"},
  {"id":143,"difficulty":"hard","question":"What is -4500 + 1899?","options":{"A":"-2600","B":"-2601","C":"-2602","D":"-2599"},"correct_answer":"B"},
  {"id":144,"difficulty":"hard","question":"What is 4800 + -3927?","options":{"A":"872","B":"873","C":"874","D":"875"},"correct_answer":"B"},
  {"id":145,"difficulty":"hard","question":"What is -5200 + -1825?","options":{"A":"-7024","B":"-7025","C":"-7026","D":"-7023"},"correct_answer":"B"},
  {"id":146,"difficulty":"hard","question":"What is 5600 + -4189?","options":{"A":"1410","B":"1411","C":"1412","D":"1413"},"correct_answer":"B"},
  {"id":147,"difficulty":"hard","question":"What is -6000 + 2437?","options":{"A":"-3562","B":"-3563","C":"-3564","D":"-3561"},"correct_answer":"B"},
  {"id":148,"difficulty":"hard","question":"What is 6500 + -5176?","options":{"A":"1323","B":"1324","C":"1325","D":"1326"},"correct_answer":"B"},
  {"id":149,"difficulty":"hard","question":"What is -7000 + -2899?","options":{"A":"-9898","B":"-9899","C":"-9900","D":"-9897"},"correct_answer":"B"},
  {"id":150,"difficulty":"hard","question":"What is 7500 + -6249?","options":{"A":"1250","B":"1251","C":"1252","D":"1253"},"correct_answer":"B"}

  ]
}