Working Backwards Strategy (MatheMatics)

Hello Bloggers, This Weeks Task In Numeracy We Have Been Learning A Working Backwards Strategy. The Strategy of Working Backwards is used to Solve Problems, For Example, to make it easier for you, you should write the Steps down. Start with the end of a problem, and work Step By Step toward the beginning to get a Solution, Write down each step as you get closer to figuring out the Problem, And Finally, The last Step will Verify that the Method Works and then you should get the Answer. Also If we were to Subtract a Number we would add, If I Multiplied a Number we would Divide If I Divided we would Subtract so this is Reversed. 

Todays Task, I Was Informed to Create my own Word Problem Solving Question and then apprise people of how to work it out and the Steps. Here is the Following Word Problem I Created - There was a Dancing Competition, 10 Minutes Later 14 People Left because they found the Following Dances To Complicated, 15 Minutes Later 3 People were eliminated from not following the Steps Correctly, 30 Minutes Later Once the Judges Made Results 7 People were voted off the Competition. And Lastly, the Judges and Group decided to Gain 3 More experienced Dances to Join the Team, How Many People Signed Up For The Competition Firstly?