Rounding and compensating

W.A.L.T subtract using Rounding and compensating because this strategy can help me calculate in my head to get the answer
quickly.I find this strategy easy because all I have to do is to add the number that is closer to the tidy number or take away then make my new equation and take away or add that number then add up what it makes for my answer then I add or take away on the answer and then that's my answer to the top question. 👌👍
Enjoy my video💜

                                

                                 Do you like maths or hate maths?        

 Have you ever made a video about maths and add it to your blog?      

What strategy's do you like?