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9 Folding and Overlapping

Basic Concepts Folding Paper to Form Shapes

Different shapes can be formed by folding a piece of colored paper once.

To find the order of the overlapping squares, start with the top colored
square and remove one colored square at a time.

12
34

Example Six square pieces of colored papers of equal size overlap. What
number is the piece of colored paper at the bottom?

3
12

6
45

Class Notes

When a colored piece of paper is removed one at a time, starting from the top:

1 23 3 3
4 56 1 56 6

The colored paper at the bottom is number .

Try It Again Several colored squares overlap. What number 1 2
is marked on the fifth colored square from the 3
top?
4
8

5
67

76 NUMINO Challenge B1
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