Practice!

Sample Problem

1) The badge is inches long.

2) The pen is inches long.

3) The glass are inches long.

4) The pen is inches longer than the badge.

5) The glass is inches longer than the pen.

6) The total length of the three items is inches.

Solution

1) Starting point of the badge: 1, Ending point of the badge: 6. Length of the badge: 6-1 = 5 inches

2) Starting point of the pen: 6, Ending point of the pen: 12. Length of the pen: 12-6 = 6 inches

3) Starting point of the glass: 5, Ending point of the glass: 13. Length of the glass: 13-5 = 8 inches

4) Difference between the pen and the badge: 6-5 = 1 inch

5) Difference between the glass and the pen: 8-6 = 2 inches

6) Total length: 5 + 6 + 8 = 19 inches