This review lesson consolidates all concepts from the unit, covering the conversion of units for distance, time, and length, as well as addition and subtraction involving different units. Students practice converting between kilometres, meters, centimetres, millimetres, hours, minutes, seconds, years, months, weeks, and days. Word problems challenge them to calculate total travel times, compare durations, determine differences, and work with real-life scenarios like rope lengths and tailoring times. Emphasis is placed on using correct conversion factors, aligning units before calculations, carrying over and borrowing when needed, an expressing final answers in proper units. This lesson ensures accuracy, speed, and practical understanding of distance and time in everyday life.