Addition
43+ 33
What is 76?
Joe was 2,000 feet above sea level. His friend Bob was 1,568 feet below sea level. Joe wanted to know what the distance was between them. What was it?
What is 3,568
Harry was playing football.He started at twenty yard line. He got the ball, but lost ten yards. The next play he gained fifteen, and the next play he lost five. What yard line is he at now?
What is 20 yard line
-57+76+-64
What is -45
Sally says -3 • -8 • -2 = -48.
Karen says -3 • -8 • -2 = 48.
Who is right and why?
Who is Sally, because -3 • -8 = 24 (multiplying same sign), then 24 • -2 = -48 (multiplying different signs).