3. Subtracting Rationals Day 2.notebook October 16, 2012
Anticipatory Set
ROLLER COASTER
A roller coaster begins at 90.5 feet above ground
level. Then it descends 105.85 feet. Find the height
of the coaster after the first descent.
90.5 105.85 = 15.35 feet
How can this answer be valid?
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5. Subtracting Rationals Day 2.notebook October 16, 2012
1 Suppose you have $50.25 in a bank account. On October
3rd you pay your cell phone bill of $125.48 what is your
new balance?
Date Check # Transaction Deposit Withdrawal Balance
Starting
10/1 50.25
Balance
Paid Verizon
10/3 123 Cell Phone 125.48 ?
Bill
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14. Subtracting Rationals Day 2.notebook October 16, 2012
10
In 2001, Wal-Mart reported a net loss of $43.9 million.
In 2002, the company had a net decrease of $13.35
million from the previous year. What was Wal-Mart‛s net
loss in 2002?
14
15. Subtracting Rationals Day 2.notebook October 16, 2012
Before You Leave
Trade-A-Problem: Create a problem
with your partner. When directed, you
will trade with another partnership and
solve their problem.
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