Word problems

Last week we learnt multiple strategies to help solve the questions that we were given. My focus was to learn and use new strategies to help improve my learning. To show my learning and what I have done to help my learning I have made a DLO using a google slide with the strategies that I used and the questions I had to work out. All I did was add all the numbers together then I minused that by what needed to be taken away. I think I worked really hard to learn new strategies and I was also very careful with how I answered the problem. I really enjoyed this maths lesson because it really gave my brain a workout and I also learnt new strategies which can now help me in the future. What strategy would you use to solve these problems?