Ima Thinker
Name _____ Date __
INVENTIONS
13
I’ll start with Clues 1 and 2 ,and
make a list of values for C. The first
three numbers are 16, 24, and 32.
1.What are all of the numbers on Ima’s list?
2.What is C? ___
3.How did you figure out the value of C? ____
4.Check your number with the clues. Show your work here.
5.Record Con the line below to complete the year of the invention.
Post-it notes were invented in the U. S. by the 3M Company in 19___.
PROBLEM
(^1) Complete the year of the invention.
Post-it notes were invented in the United States by
the 3M Company in 19___.
The letter Cstands for a 2-digit number.
Use the clues to figure out the value of C.
CLUES:
- C is a multiple of 8.
- C < 4 x 22
- The product of the two digits of C is zero.
- C ≠ 40
Algebra Readiness Made Easy: Gr
. 6
© 2008 by Greenes, Findell & Cavanagh, Scholastic Teaching Resources