Problem 12 : Cookies
Date: May 16, 2000.
Skills required: Addition and subtraction
of numbers up to 20.
Target audience: 1th - 3th grade.
Deadline to submit the solution:
June 30, 2000.
Anna, Peter and Alex have 18 cookies together.
Leana has 7 cookies. She has 3 more
cookies than Peter and 1 cookie less than Alex.
How many cookies do Anna, Peter and Alex have each?
Answer the following questions:
Q1: How many cookies has Anna?
Q2: How many cookies has Peter?
Q3: How many cookies has Alex?