ACTIVITY 2A: ADD ‘EM UP
Description
Students determine the total value of stocks in a portfolio given the value of their holdings in
individual stocks.
Math Objectives
The student will be able to:
• Find the sum of numbers in decimal form
• Solve word problems
• Distinguish between relevant and irrelevant information in a mathematical problem
Stock Market Concepts
Stock Prices
Connections and Extensions
Math: Students write additional word problems using a similar format as those in the activity. Students
create a separate answer key with the problem worked out in full. Students trade problems and solve
their partner’s problem. Students correct the work of their partner.
Writing: Students write a short letter to a friend who has not studied decimal addition and explains
how to perform the operation.
ACTIVITY
Solve each of the following problems. Show your work in the space provided or on a separate sheet of paper. Circle your final answer.
1. Keri has three stocks in her portfolio. The value of her technology company stock is $3,412.72. Her utility company stock is worth $1,208.26, while her publishing company is valued at only $763.31. What is the total value of her three stocks?
2. Jovon wants to invest in four companies. 500 shares of the transportation company he is interested in would cost $3,526.43. 1250 shares of a cell phone manufacturer would cost $16,873.76. 805 shares of an electronics manufacturer would cost $4,721.43. 715 shares of a drug company would cost $4,301.18. If Jovon purchases all of these stocks, how many shares would he own and what would the total cost be?
3. Sally invested in three companies. She purchased stock in Irish Eyes Are Smiling for $2,805.00, Tartan Ties for $1,896.32, and Bagpipes R Us for $3,217.26. What was the total cost of these investments?
4. Wade wants to purchase 100 shares of stock in each of three companies that are closely related to his favorite pastime. Motorcycle Mania stock will cost $736.45. Helmets and More stock will cost $1,238.84. Riding Gear Incorporated stock will cost $2,643.56. What will his total investment be?
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