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Thursday, September 20, 2007

Addition and Subtraction - Elementary

On March 2, 2005, the fourth grade class went on a field trip to visit the historical marina. An old sailboat was on display in the area. The teacher read a sign that said, “This boat was built on March 2, 1867”. The teacher asked the fourth grader to tell her how old is the sailboat on the day of their field trip? Choose the correct answer

a. 115 years
b. 138 years
c. 235 years
d. 375 years

Answer: b

Explanation:
On March 2, 2005, the sailboat is 138 years old. To find that answer we subtract the year it was built from the date of the field trip as follows:
2005 – 1867 = 138

©Copyright 2007.Najwa S. Hirn. All rights reserved.

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