Mathletics Screencast

My Reflection 

In this activity my task was to do addition or subtraction I did a easy one I figured it out it was 10, 20, 50, complements it got easy then harder then 9th question was hard cause it was 2+?=50,  it took time to figure out then I was finished. 

I found this hard because I was stuck on 38+?=50 I found it out after 30 seconds then I found it out it was 12.

My next steps are to tell how I worked the answer.