maths

hi my name is Camryn and today we did this maths we had to solve what the temperature
it was very hard but we got it done  here is one of the ones that we one

19 18 16 15 20 =88 divide 5=17-16 we done to but the author one i did not get time to do   

what was the temperature  in the past 5 days.
this is what i was blogging about i hope you like it bye.