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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

Make 100 using the numbers 400, 200, 50 and 2.

Use the operations + - * / 2 (square) 3 (cube).

Mathaholic | 17th most active poster | 681st most recent person to join MIFF | Person | rrr's classmate

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,302

Hi;

Welcome to the forum.

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 15,937

400-200-2*50=100

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

Bobbym and anonimnystefy, you are both correct!

Now, second equation using PEMDAS:

Make 75 using the numbers 5 5 3.

Use the operations + - * / 2 3.

Mathaholic | 17th most active poster | 681st most recent person to join MIFF | Person | rrr's classmate

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,302

5 * 5 * 3 = 75

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

Correct, bobbym! Anymore solutions?

:

Mathaholic | 17th most active poster | 681st most recent person to join MIFF | Person | rrr's classmate

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,302

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 15,937

(5^2)^2/5^2 *3=75

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

Great!

What about this?

Numbers 1 2 3

Operations + - x / 2 3

Answer 10

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,302

(2^3) + ( 3 -1 ) = 10

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

Wow, bobbym! Anymore solutions?

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 15,937

3^2+2-1

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

Okay!

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

New:

Answer 10000

Numbers 100 100 1

Operations + - x / 2 3

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,302

Hi;

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

:

*Last edited by julianthemath (2012-12-18 23:26:44)*

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

Okay.

Tricky!

Answer 120

Numbers 5 4 3 2 1

Operations 2 3 !

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,302

Hi;

(3+2)!

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

Yurp.

Could

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,302

Could also be ( 1 + 4 )! or (( 5 + 4 +1 ) / 2)!

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

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**phrontister****Real Member**- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,094

And could also be 1! x 2 x 3 x 4 x 5

"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,302

Hi julianthemath;

I missed that you only wanted the operations of factorial and 2 and 3.

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

Okay!

Numbers 8 7 6 5 4 3 2 1

Operations 2 3 !

Answer 40,320

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**muxdemux****Member**- Registered: 2012-12-23
- Posts: 80

How do you do one of those spoiler tags?

Anyway, am I playing this game right?

(8!/7!)*(7!/6!)*(6!/5!)*(5!/4!)*(4!/3!)*(3!/2!)*(2!/1!)

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,020

Muxdemux, belated welcome to the forum.

Are you sure that is right? I will post a new one soon.

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