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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,041

Let us give 2 primes that equal 1000. Okay?

863+137

Mathaholic | 17th most active poster | 771st most recent person to join MIFF | Person | rrr's classmate

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**scientia****Member**- Registered: 2009-11-13
- Posts: 224

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,300

977 + 23

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,041

Another rule:

Any operations allowed.

Mathaholic | 17th most active poster | 771st most recent person to join MIFF | Person | rrr's classmate

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,300

Hi;

Too bad you only want two primes

1000 = 29 x 31 + 11 - 37 - 7 x 17+41 x 2 x 3

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,041

More:

1439-439=1000

Mathaholic | 17th most active poster | 771st most recent person to join MIFF | Person | rrr's classmate

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,300

1907 - 907 = 1000

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

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**scientia****Member**- Registered: 2009-11-13
- Posts: 224

cube(2) × cube(5) = 1000

(NB: I write cube(*n*) instead of *n*[sup]3[/sup] in case the exponent is mistaken for an extra number.)

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,300

509 + 491 = 1000

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

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**noelevans****Member**- Registered: 2012-07-20
- Posts: 236

1997-197 = 1000

Oops! Off to a great start for the new year I am!

Should have been 1997-997.

*Last edited by noelevans (2013-01-01 08:12:31)*

Writing "pretty" math (two dimensional) is easier to read and grasp than LaTex (one dimensional).

LaTex is like painting on many strips of paper and then stacking them to see what picture they make.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,300

1019 - 19 = 1000

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

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**pellerinb****Member**- Registered: 2012-12-26
- Posts: 43

7907 - 6907

Prime numbers have got to be the neatest things; they are like atoms. Composites are two or more primes held together by multiplication.

In biology, we use math like we know what we are talking about. Sad isn't it.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,300

1013 - 13 = 1000

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,041

Okay. Anymore?

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,300

17 + 983 = 1000

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

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**scientia****Member**- Registered: 2009-11-13
- Posts: 224

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,300

47 + 953 = 1000

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,041

Okay! Anymore solutions?

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,300

773 + 227 = 1000

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,041

Anymore?

Version 1.3

Any number of primes allowed

Could use a little composite numbers

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,041

Good. Anymore before some upgrades?

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 100,300

Yes, there are more. Why not do a few more before any upgrade.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **Thinking is cheating.**

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**mathaholic****Member**- From: Earth
- Registered: 2012-11-29
- Posts: 3,041

Version 1.4

Could have an answer of multiples of 100, e.g. 47 + 53.

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