the temperature was -5 F when shelly went to school on Monday. the temperature rose 20 F during the day but fell 25 F during the night. A heat wave increased the temperature 40 F on Tuesday but then an arctic wind overnight decreased the temperature 70 F.What was the temperature on Wednesday
You start at -5 then you add 20 to get 15 . Then you subtract 25 from 15 to get -10. Then you add 40 to -10 to get 30. Then you have to subtract 70 from 30 to get -40 F.
