I use addition.

1 buyer + 1 seller = a bunch o' happy people.

Basic grade school arithmetic unless you're in Commercial Real Estate.  Mortgages etc are to be handled by the lender not the Realtor. Don't tread where you're not to be.

I use multiplication the  most ... getting percentages!

I use multiplication a lot to determine splits. Then subtraction and addition - in checking my work.

Mostly basic math and that can be done with a calculator.

I like, house sold X house price= commsission.

real estate math is mostly 4th grade math... addition, subtraction, multiplication, and division.

 Very simple arithmetic ..

Percentages is the top thing, followed by basic addition and subtraction.  You should be able to whip up a seller net sheet with ease....but still using a calculator of course.

Mostly multiplication on my smartphone to calculate percentages.

I use the calculator on my iPhone for figuring commission, closing costs , and proceeds.

For residential real estate, the basic math that we all learned in grade school should suffice.

It requires very little.

I mostly use math when doing a CMA and then I use a calculator.  However, a CMA is usually involves a lot more than math.

I don't use very much math at all in this business.

Addition, subtraction, multiplication and division - basic math that my phone calculater is a master at processing!

The math on net proceeds sheets for sellers, and estimated costs for buyers. Percentages too - list price/sale price ratio, and $/SF

Jamie,

You have great answers.  A

1 ac=43560 sf

Figuring square feet when I measure a property is a frequent use. I also figure net to seller which includes calculating commissions and other expenses.

Obviously that 3% math.

Get a Qualifier calculator.

It will immediately and easily calculate monthly payments and other equations.

Honestly, the most math you will probably use is calculating your commision and... trust me... you'll learn how to do that!  Otherwise, maybe knowing the square footage of an acre, for calculating lot size.  Other math, not that much unless you work commercial and investment property.

The others will give you detailed specifics, but I have a general suggestion because you don't love math.  I'm not sure if it's useful, but it might be.

Once you have figured out the kinds of math you will need to do a lot, you might make up a chart for yourself, in which you calculate 6 or 10 things out.  During your work day, if you don't know whether something is a good idea or not, and people are waiting on your answer, you can look up your little chart for a ball-park answer just to get an idea, and then work out specifics later.

Example: let's say you wondered what would be your commission if the house is listing at $975,000.  In your chart, you can make a column that has $200 (in thousands) $500, $750, $1M, $1.2M and beside them show your commission, calculated at whatever your rate is at your brokerage. The $975 is close to $1M, so you look up $1M on the chart and know it's less.  If you are getting 5% commission (for example), that's $1250 per $25,000.  If you have that written on your little chart, it won't be long before you have a pretty good idea how your commission will work in lots of situations.  You can do a chart for tax calculations and any other kinds of things you may need to treat separately just for ball-park treatment. Back at the office, get them calculated properly.

Multiplication and percent computations

Most of the math you will need in this business can be found in a copy of Jethro Bodine's "Fourth Grade Book of Ciphering".  I'm sure you'll be fine. Good luck.   

Basic math, let the lenders and title company do the other things.

Others have answered

sale price x commission = the check I'm delivering to my bank account....

43,560 which is how many feet in an acre comes up frequently

I like math so bring it on

Even those who are math challenged find a way to calculate the commission in their head. Imagine that!

Calculating commission

Graphing tangents and arcs are most common....

....in intergalactic real estate.

Calculate my commission when I process earnest money.

Converting square footage on tax card to acres for BPO's.  (10,000/43560)

Alan May nailed this one!

Geometry/trig for boundaries

Statistics for volume/value sampling.

I am not good at math either,  so I use technology to do it for me. However I always triple check, just to make sure there are no errors.

Use a good financial calculator.

Closing cost estimates with the proper prorations.

Jamie Garner Commercial real estate requires knowledge of math. You should also have a good financial calculator like an HP12c.

Excel spreadsheets that auto-calculate.

The Closing Disclosure to make sure all figures are correct! 

Basic math - if you don't understand it ask a question.  There is always someone willing to help you. 

A lot of linear algebra and differential equations.  Just kidding seldom do any math.

    Basic arithmetic,

    If I have to get into complex math with an investor, or a commercial client (which I rarely deal with), I will bring in a CPA to advise on 39-year depreciation, ROI, future value, etc.  

    I can do the complex math (thanks to HP-12C), but I don't want the liability - I am a real estate broker, not a financial counselor.

Basic math skills.  You won't be dealing with anything you don't already know. And if you do, it is easy to learn. Basic calculator and you are good to go. 

The calculator on my iPhone!

Mine neither.  Once I get past counting on my fingers and toes I'm out of luck!  LOL.

Seriously though, the most math I do is:

1) Purchase price - down payment - deposit = loan amount  (and the computer does that for us)

2) Agreed upon purchase price * commission

There is not much to it; you can use as little or as much as you choose.