Sheet # 1
Name: _____________________ Date_____________
1. How could you represent the following quantities by means of positive and negative numbers?
a) a profit of $3000
b) a loss of $6000
c) An altitude of 100 ft. above sea level
d) An altitude of 50 ft. below sea level
e) a loss of 15 yards
f) a gain of 10 yards
g) a distance of 2 miles east.
h) a distance of 5 miles west.
2) The elevator control board of a department store lists the floors as B2, B1, and floor 1, 2, 3. Here B1 and B2 refer to basement levels. How could you use positive and negative numbers to label these floors?
3) Draw a number line indicating altitude from - 1,000 feet to +10,000 feet. Use intervals of 1,000 feet. Locate the altitude of - 800 feet, 100 feet, 2500 feet and - 500 feet.