I am having trouble with math problems I need some help please!?

Question

Im having trouble converting 312 to binary do I just keep dividing by two until I have zero quotient?
Also
covert 3210five to a hexadecimal.
convert 1048sixteen to octal.
Im not asking just for an answer just advice and help!!!

Answer 1

I'll show you an easy way to convert decimal to binary. I'll convert a small number so you can see the pattern.

Example:
Let's convert 10 to binary
Start with ten, take half of ten and keep taking half (discarding the remainder) until you reach 1.

10
5
2
1

Where there is an odd number, place a 1, where there is an even number, place a zero.

Always start at the bottom and go up.

Since we start at the bottom the first number is 1 and we will place a binary one, etc.

1 =1
2 = 0
5 = 1
10 = 0

So decimal ten converts to binary 1010.

Remember to discard the remainder when you are taking half.

Hope this helps.

Answer 2

Don't remember how to do the conversion but you can check your answers using the Windows calculator.

Just click View then select Scientific.
Enter your number in Dec mode then switch the mode to the base you want to see it in.

Example:

Dec = 123
Bin = 1111011
Oct = 173
Hex = 7B

Answer 3

Try this site it may help.