Correct: 1km = 1000m, There are 10mm in 1cm, The most reasonable measurement to work out the perimeter of our playground would be m, To convert larger units to smaller units we mulitply, The prefix ‘kilo’ means ‘1000 wholes’ so a kilometre is 1000 times longer than a metre, To convert metres to kilometres, divide by 1000, To convert kilometres to metres, multiply by 1000, Incorrect: 1km = 100m, There are 100mm in 1cm, The most reasonable measurement to work out the perimeter of our playground would be cm, To convert larger units to smaller units we divide, The prefix ‘milli’ means ‘1000 wholes’ so a kilometre is 1000 times longer than a metre, Mr Davis would like our playground plan drawn up in millimetres, The perimeter of our sand pit would be measures in kilometres,

Converting between metric units

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