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# 20

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by

## Mr. Stack

on 11 March 2014

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#### Transcript of 20

20x1
10x2
5x4
4x5
2x10
1x20
Factor Pairs

20
40
60
80
100
120
140
160
180
200
etc.
Some Multiples
1. A backpack at Models costs \$29.00. A flashlight costs \$6.00. You have two \$20.00 bills. Can you afford to buy these items? If so, how much change do you receive?
Multi-Step Problems
1. Andrew Jackson is on the front of the 20 dollar bill.

2. 20-20 vision means perfect eyesight.
Vingt French
Veinte Spanish
Venti Italian
20 in Three Foreign Languages
4, 8, 12, 16,
20
, 24, 28, 32, 36, 40
My Number Pattern
I chose this number because March 20th is my birthday. My number (20) is even, composite, and a multiple of 2, 4, 5 and 10.
What Makes This Number so Special?
How much do you know about the number 20?
Texas and Georgia have an interstate 20.
2. Molly read 20 pages of her book. Her sister read 40 more pages than Molly. Their teacher challenged each of them to read 250 pages in 1 week. How many more pages do Molly and her sister still have to read combined?
Unknown Equations
1. 30+
20
=50
2. 50-
20
=30
3. 100/
20
=5
4. 2x
20
=40
Equations
1. 30-10=20
2. 10+10=20
3. 5x4=20
4. 40/2=20
Unique Representation of the Number 20
Where Have You Seen the Number 20
Credits
Prezi By: David Gaetano
Room 11 OHS
Number Project
Pictures of the Number 20
Full transcript