Children continue to use scales in Year 3, including using kilograms. A mix of kilograms and grams will be used but the measurements should be read as ….kg and …. g. building on their understanding that there are 1,000 g in 1 kg. The scales they use will be more complex, with children needing to work out missing intervals between numbers. Take a look now at our new measuring mass worksheets for Year 3.