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bases

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Addition and subtraction base 5 2017-01-29
From BABAWALE:
Simplify 342five +132five-223five
Answered by Penny Nom.
4444 base five 2016-11-11
From John:
If 4444 is a number in Base5, is 624 its value?
Answered by Penny Nom.
Subtraction of two numbers in different bases 2016-10-07
From Wica:
Hello,

So happy I found this site. I am having problems with bases. My question is :
Please perform the subtraction between two number over different bases :
A. (5874)base 12 - (216)base 9
B. (216)base 9 - (5874)base 12

Answered by Penny Nom.
A problem in base x 2016-03-25
From Malith:
determine the value of base x of (211)x = (152)8

please mentioned the steps
Thank you

Answered by Penny Nom.
Division base 5 2016-02-01
From Jenalee:
I am having problems with a dividing bases question. I reviewed two that I could find in the database and tried the question as shown but I am still getting the wrong answer.

My question is 32\24043 to the base of 5 for both.

Answered by Penny Nom.
Subtraction in a base larger than ten 2016-01-31
From Jenalee:
Hello,

So happy I found this site. I am having problems with bases. My question is 97B9 - 6A3A base 16 for both.

Please help.

Answered by Penny Nom.
Subtraction in base 8 2015-10-21
From Adi:
Hi! Can you help me with a nagging problem, I searched a lot over the web and couldn't find it. I saw this site I gave it a try and I found it to my liking.

I am confused how to subtract bases from other bases:
567 (in base 8)
- 456 (in base 8)
______________
?????????
How do you do this? I do know how to carry and subtract with different bases. Can you please help me?

Thanks,
Adi

Answered by Penny Nom.
Integers in different bases 2015-03-05
From Michael:
Let k be a positive integer so that 28 (subscript)k = 132 (subscript)5
Answered by Penny Nom.
211basex=152base8 2014-12-15
From Humaira:
211basex=152base8
Answered by Penny Nom.
Division in base 3 2014-09-30
From Nnubia:
1021 in base 3 divided by 2 in base 3
Answered by Penny Nom.
Base 6 2014-09-10
From Amanda:
using base 6, what is the next number after 25? 35? 55? and 455?

I need to be able to show the base 6 material.

Answered by Penny Nom.
35 base 6 2014-09-10
From Amanda:
Sorry I am having trouble understanding base,

35 in base 6 means 3 10's and 5 ones, which is the same ____ in base 10?

Answered by Penny Nom.
211(base x)=152(base 8) 2014-09-09
From Vaidehi:
Find the base value (i.e. x):
211(base x)=152(base 8)

Answered by Penny Nom.
How can eight eights be 1000? 2014-06-20
From Aamir:
The digit 8 if we add it 8 time in it the answer should be equal to 1000.it may possible.i.e., 8+8+8+8+8+8+8+8=1000
Answered by Penny Nom.
Base 5 2013-09-30
From Zakir:
Sir I wanna know something about base 5 number system Why we use it and who use this ? and what is the purpose of it
Answered by Robert Dawson.
How can I teach how to change bases? 2013-02-20
From Tammy:
How can I teach how to change bases? For example 80 base 10 changed to base 3. Thank you!
Answered by Harley Weston.
The multiplication table for the different bases 2013-02-01
From sylvia:
I am having a difficult time trying to figure out how to fill in the multiplication table for the different bases. i don't know how to get the numbers.
Answered by Penny Nom.
Division in base eleven 2012-05-27
From Zoe:
How do you divide numbers that are in base 11?

For example;

9A7A6A divided by A

Answered by Penny Nom.
Bases larger than ten 2009-12-14
From Nick:
For numbers in bases larger than ten, what are the digits by mathematicians' conventions?

I assume the first 10 are always 0-9. I know two computer science conventions (for hexadecimal (A-F case-insensitively) and for base 85 (case-sensitivity plus 23 other characters)) and as a school student I learned that base 12 uses either T and E (which confused me when I thought they stood for Eleven and Twelve) or A and B, the latter as capitals only. Clearly, these conventions are in conflict.

I saw your reply in http://mathcentral.uregina.ca/QQ/database/QQ.09.99/magin1.html as accessed a few minutes ago but hope that in the 10 years since then mathematicians have arrived at a convention. Have they?
Thank you.

--
Nick

Answered by Claude Tardif.
A base 7 number and a base 9 number 2009-07-09
From koteawarao:
Find a base 7 three-digit number which has its digits reversed when expressed in base 9.

ans: (281) base 7 and (182) base 9

Answered by Harley Weston.
Multiplying in different bases 2009-02-25
From Susan:
11 base 2 X 22 base 3 + 33 base 4 = _________ base 5
Answered by Robert Dawson.
In what base is 3x3= 10? 2009-02-14
From David:
In what base is 3x3= 10, 3x3=11, 3x3 = 12? is there a fast way to see this or do I have to create multiplication tables until I find the right one?
Answered by Penny Nom.
Division in different bases 2008-12-02
From MICHELLE:
DIVIDE 538 BY 14 IN BASE 2, 3, 4 & 5
Answered by Penny.
How do you change bases? 2008-06-17
From Peter:
How do you change bases eg. 121 from base 3 to base 5?
Answered by Penny Nom.
Convert from base 6 to base 12 2008-03-02
From Jade:
I am trying to convert 13405 base 6 to a base 12 number. I am not allowed to go into a base 10 number. How will can I base 12 without doing anything with base 10? Thank you kindly.
Answered by Stephen La Rocque and Penny Nom.
Multiplying numbers in bases other than 10 2008-01-08
From Imaiya:
In class we've been learning about numbers with a base other than ten. For example, base 7, base 5, and base 6. What's really stumping me is how to multiply these numbers, when they aren't a base of 10. I've had it explained to me once, but don't seem to understand it. Here are the equations, and I've listed the first few numbers for that particular base.

Base 5: 0,1,2,3,4,10,11,12,13,14,20 etc... The Equation: 34 x 42 Base 9: 1,2,3,4,5,6,7,8,10,11,12,13,14, etc... The Equation: 56 x 78

If you could explain to me how to multiply numbers with any type of base, I'd really appreaciate it. Also if you could show me how to do one of the questions that I listed, that would really help me =) Thanks so much, and once again, thank you for your great site!

Answered by Stephen La Rocque.
Representing different bases 2007-12-05
From Sudhir:
What does a number subscripted to another one denote? (I know that a number superscripted to another denotes the power, but the subscript number is something I have never seen before.)
Answered by Stephen La Rocque.
Converting bases 2007-10-24
From Johanna:
Is there an easy way to convert from base to base. For example, base 5 to base 9 or base 2 to base 4 etc
Answered by Stephen La Rocque and Penny Nom.
In what base does 25+25=51? 2007-04-03
From Jenna:
In what base does 25+25=51?
Answered by Stephen La Rocque and Penny Nom.
A 3-digit number in base 7 has its digits reversed when expressed in base 9. 2007-01-28
From Ashley:
A 3-digit number in base 7 has its digits reversed when expressed in base 9. Find this number.
Answered by Penny Nom.
Arithmetic in bases other than 10 2003-10-22
From Kim:
how do you add, subtract, multiply and devide in base 3, base 5, etc?
Answered by Penny Nom.
Numbers in base 5 2003-02-16
From Lori:
I'm trying to help my 6th grader with converting numbers like 82 to base 5 and 182 to base 12. We saw your examples on 613, but still are confused.
Answered by Penny Nom.
A rectangular prism 2003-01-09
From Julie:
How many faces on a rectangular prism and how many bases? Can the base also be a face and can a face also be a base?
Answered by Diane Hanson.
Base 5 numbers 2002-09-13
From Vera:
? how do you change a base 10 number to base 5
Answered by Penny Nom.
Arithmetic in base 5 2000-09-20
From Lesley Emerson:
my daughter is 9 and has been aske to solve the following in base 5

3+2
4+10
.
.
.
Answered by Penny Nom.

Bases other than 10 1999-12-06
From Garret Magin:
We are doing a lesson on numbers of other bases than 10. We are working with binary, octal, and Hexadecimal. I was wondering what is used to represent number of different bases other then 16? Does it just continue on with the alphabet and if so what happens when you get to Z. It would be a help if you could answer this because it is really bugging me. And none of the math teachers at my school could let me know.
Answered by Claude Tardif and Patrick Maidorn.
des conversions de bases différentes 2003-01-04
From Christian:
Je cherche désespérément la (les) règle(s) pour réussir des conversions de bases différentes : de base x vers base y.
Answered by Claude Tardif.
 
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