oh look! the bus is finally here. Wanna sit together?
7:45 am at bus stop
oh hi matt! she is just really cold.
Hey Bella, why is Norah like that?
oh. well it is -8 outside
I don't know? Let's ask Mrs.Adams at school today
Ya, but they say it will be 10 by lunch
really? How much will the temperature have increased?
Mrs.Adams if the temperature is -8 then 10 how much as it increased?
Mrs.Adams math class
Good question Matt Does anyone in the class know the answer
-8+_____=10 we want to find the missing number so we would write out 10-(-8)= how much the temp. has increased 10-(-8) can also be written as 10+8 since 10+8=18 that means the temp. has increased 18 degrees
well then class write what is on the bored in your notebooks this in your notebooks