LND Class 3 Math - Subtraction body { margin: 0; padding: 0; font-family: Arial, sans-serif; background: #BBDEFB; color: #333; height: 100vh; display: block; /* Flexbox fallback */ } /* HEADER */ .top-header { background-color: #0091EA; color: white; padding: 15px; font-size: 18px; font-weight: bold; text-align: center; } .yellow-strip { background-color: #FFD600; color: black; padding: 10px; font-weight: bold; text-align: center; border-bottom: 2px solid #FBC02D; } /* VIEWS */ .view-section { display: none; width: 100%; height: 100%; } .view-section.active { display: block; } /* MENU BUTTONS */ .set-list { padding: 10px; text-align: center; } .set-btn { display: block; width: 100%; background: white; border: none; border-left: 5px solid #0091EA; padding: 15px; margin-bottom: 10px; font-size: 16px; text-align: left; box-shadow: 0 2px 4px rgba(0,0,0,0.2); cursor: pointer; position: relative; } .set-btn:active { background-color: #eee; } .set-btn span { float: right; font-weight: bold; color: #0091EA; } /* QUIZ AREA */ .quiz-container { padding: 20px; text-align: center; } .black-box { background-color: #000; color: #fff; width: 100%; padding: 40px 0; font-size: 40px; font-weight: bold; margin-bottom: 20px; border-radius: 4px; } .options-row { width: 100%; margin-bottom: 20px; } .opt-btn { width: 30%; margin: 1%; background-color: #616161; color: white; border: none; padding: 15px 0; font-size: 20px; font-weight: bold; display: inline-block; border-radius: 4px; } .opt-btn.correct { background-color: #2E7D32 !important; } .opt-btn.wrong { background-color: #C62828 !important; } /* RESULT TABLE */ table { width: 100%; border-collapse: collapse; margin-top: 10px; background: white; } th { background: #0091EA; color: white; padding: 8px; } td { border-bottom: 1px solid #ccc; padding: 8px; text-align: center; } .action-btn { width: 100%; padding: 15px; background: #0091EA; color: white; border: none; font-size: 18px; margin-top: 10px; cursor: pointer; } LND SLOs - Subtraction SELECT PRACTICE SET Loading Sets... Subtraction Quiz Q. 1 | Time: 00:00 ... Next Question Exit Result Card Score: 0 / 30 QSumAnsSts Share WhatsApp Home // --- GLOBAL VARIABLES --- var totalSets = 10; var currentSet = 1; var qIndex = 0; var score = 0; var historyData = []; var questions = {}; var timerInt; var sec = 0; // --- GENERATE QUESTIONS (RUNS IMMEDIATELY) --- function init() { var html = ""; for(var i=1; i 3) { min = 100; max = 999; } if(setId > 6) { min = 1000; max = 9999; } // Safety loop to prevent crash for(var k=0; k0.5) off = -off; var val = ans + off; if(val < 0) val = 0; var unique = true; for(var x=0; x
