Children will have plenty of opportunities to show that they can find the total or difference between different masses confidently with this Year 3 Add and Subtract Mass Fluency Matrix worksheet. The measurements are in both kilograms and grams. There are a range of questions which gradually increase in the level of challenge to ensure engagement throughout the lesson. As this resource is flexible in how it can be used, you may choose to use a targeted row or column or alternatively the whole sheet. Download now!