STAMP STUMPERS
Name _____ Date __
How much is one triangle stamp?
The total cost of the four stamps on the envelope is 29¢.
The triangle stamps cost the same.
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1.How did Ima change the total cost?
2.How much is one triangle stamp? _____
3.How did you figure out the answer to #2?
4.Write the cost on each triangle stamp below. Find the total cost.
PROBLEM
3
Algebra Readiness Made Easy: Gr
. 4
© 2008 by Greenes, Findell & Cavanagh, Scholastic Teaching Resources
Ima Thinker
First, I’ll pretend to take the 8¢ stamp off the
envelope. Then, I’ll change the total cost.
4 stamps
Total cost... 29¢
5 stamps
Total cost... ___¢