Algebra Entertainment

Done by:Gerlynn Yap Mariel NgChua Yu Jia

1.Introduction2.Magic Tricks

3.Crossword Puzzles4.Jokes

5.The End

Algebra Entertainment

Algebra Entertainment – Our team chose this as our title for Entertainment sounds appealing to the audience. Entertainment includes Puzzles and Games, Jokes and Magic Tricks, or anything interesting and fun. Therefore, our presentation will be including a short coverage of the above topics.

May everyone sit back, relax, laugh your heads off, and enjoy the presentation. Thank you very much for your kind attention.

Algebra Entertainment

(take out a piece of paper and pencil)

1. Write down the year you were born. 2. Write down a year when a memorable event in your

life took place. 3. Write down your age as of the last day of this year. 4. Write down the number of years that elapsed since

the memorable event (in Step 2) took place. 5. Add the 4 numbers obtained from Steps 1 through 4.

What is your answer?

4012!Algebra Entertainment

(This answer is only applicable in year 2006)y = Current year

Write down the year you were born. [let this be a]

Write down a year when a memorable event in your life took place.

[let this be b]Write down your age as of the last day of this

year. [let this be y-a]

Write down the number of years that elapsed since the memorable event (in Step 2) took

place. [let this be y-b]

Add the 4 numbers obtained from Steps 1 through 4. [which will be a + b + y – a + y – b

= 2y] Algebra Entertainment

1. Think of your age in years 2. Multiply your age by 2

3. Add 104. Multiply by 5

5. Add your favourite one-digit number6. Subtract 50

All digits before the last digit will represent your age,

and the last digit will be the one-digit number you chose!

Algebra Entertainment

Think of your age in years [10x + y]

• Multiply your age by 2[20x + 2y]

• Add 10[20x + 2y + 10]

• Multiply by 5[100x + 10y + 50]

• Add your favourite one-digit number[100x + 10y + 50 + z]

• Subtract 50 [100x + 10y + z]

Algebra Entertainment

Solve the Crossword Puzzle!Feel free to take your notes out, or to discuss to solve this puzzle.

A small prize will be given to those who solves it!

Algebra Entertainment

Answers:1. Fibonacci 2. Commutative3. Identities 6. Quadratic4. Unknowns 7. Distributive5. Simultaneous 9. Simplify8. Pythagoras’ Theorem 11. Associative 10. Factorisation 13. Pascal’s Triangle12. Calculator 14. Elimination 15. Expand

Algebra Entertainment

Algebra Entertainment

Note:(a+b)² = a² + 2ab + b²

One of the 3 most important algebraic identities.

The hypotenuse of the right angle triangle can be found using Pythagoras’ Theorem.

Let the 3cm (a side of the Δ ) be a 4cm (other side of the Δ ) be b hypotenuse (the diagonal side of the Δ ) be x.

Pythagoras theorem:a² + b² = x²

Therefore,3² + 4² = 259 + 16 = x² = 25x = 5

Algebra Entertainment

Algebra Entertainment

$1 = 100¢= 10² ¢= $ 10²/100= $ 100/100= $1

Algebra Entertainment

(That need not necessary be related to algebra)

Algebra Entertainment