Tuesday

September 16, 2014

September 16, 2014

Posted by **Anonymous** on Thursday, November 17, 2011 at 10:47pm.

- math -
**MathMate**, Thursday, November 17, 2011 at 11:01pmNumber of choices for the first digit = 4

Since there cannot be repetitions,

Number of choices for the second digit = 3

similarly,

Number of choices for the third digit = 2

By the multiplication principle, the number of different 3-digit numbers with distinct digits that can be made from 4

= 4*3*2 = ?

- math -
**Steve**, Friday, November 18, 2011 at 12:56pmHowever, not all of those numbers are less than 500.

choices for 1st digit: 2 (3 or 4)

choices for 2nd digit: 3

choices for 3rd digit: 2

so, there are really only 12 possible numbers less than 500

**Answer this Question**

**Related Questions**

math - using digits 1-9 only once, multiply a 3 digit by a 2 digit number and ...

Math - How many 3 digit numbers can be made using the following digits only once...

Math - Using only the digits 2,3,5 and 7 complete the following problems below. ...

math - 8. How many different four digit numbers can be made from the digits 3,8,...

5th grade - How many different four-digit numbers can you make from the digits 1...

math help - How many different two- digit numbers can be formed using each of ...

Math - How many different three-digit numbers can be written using the digits 4...

math - Any of the ten digits 0 through 9 may be used in a 6-digit code, but no ...

Math - How many different four-digit numbers can you make using all the digits ...

Math - What do the digits in the number 15 add up to? Answer 1+5=___. Using ...