1. An Advertisement for Algebra!
ALGEBRAIC THINKING
An Advertisement for Algebra!

2. Pick 2 positive integers and form the following list of 6 values
First number chosen.
Second Number chosen.
The sum of the two numbers.
Twice the sum of the two numbers.
Add lines 3 and 4.
Repeat the result of line 5.

3. 33 11 44 88 132 An Example with 33 and 11 First number chosen.
Second Number chosen.
The sum of the two numbers.
Twice the sum of the two numbers.
Add lines 3 and 4.
Repeat the result of line 5.

4. TRY IT WITH THESE
123456
654321
777777
You will amaze your friends when you can quickly add up these numbers!

5. The Secret to quickly adding these up – it’s 10 times line 3
STEP
NUMBER 1 X 2 Y 3
X+Y 4
2(X+Y)=2X+2Y 5
3X+3Y 6
TOTAL
10X+10Y=10(X+Y)