In Maths for this week, I have learnt about subtracting decimals. I have learnt that when subtracting decimals, always go to the small number first. For example; 4.7-2.9=?. The way that I use to work this out is, 0.7-1.9=0.8. I still have these numbers leftover to subtract, 4-1=3. So the aweser must be 1.8.