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Math lesson 254 · Calculations

Rounding and Units on Real Estate Exam Math

Carry available precision through intermediate steps and round the final answer as the question directs. A statutory rule to count any fractional $100 or $500 unit means round that unit up, not to the nearest unit. Always report dollars, percent, mills, days, square feet, or acres as requested.

Facts checked against the current PSI Candidate Information Bulletin and GREC sources. Last reviewed August 2, 2026. Editorial standards.

What is the exam-ready answer?

Carry available precision through intermediate steps and round the final answer as the question directs. A statutory rule to count any fractional $100 or $500 unit means round that unit up, not to the nearest unit. Always report dollars, percent, mills, days, square feet, or acres as requested.
Official syllabus mapping for Rounding and Units on Real Estate Exam Math
Roadmap post254 of 500
Official syllabus topicXI Real Estate Calculations: accurate computation, statutory transfer fees, ratios, time, and measurement units
Official PSI areaReal Estate Calculations
Published weight7% of the 100-question national portion
Source editionPSI Georgia Candidate Information Bulletin dated July 1, 2026
Content checked throughAugust 2, 2026

The Rule

PSI publishes a weight for the complete official area, not a guaranteed count for this individual calculation. Follow the stated facts, units, time basis, and rounding instruction.

Formula and variables

Rounding hierarchy: Exact statutory unit rule first; otherwise preserve precision and round the final requested unit
Variables used in Rounding hierarchy
Symbol or termMeaning
Statutory ceilingA required round-up of any fractional taxable unit
Ordinary roundingNearest requested decimal place when no special rule overrides it
Unit labelThe money, rate, time, distance, or area unit that makes the number meaningful

Step-by-step method

  1. Write the requested final unit before starting.
  2. Identify whether a statute or question requires rounding up, nearest, down, or no rounding.
  3. Keep full calculator precision through intermediate steps unless a statutory unit must be counted first.
  4. Round the final amount to the requested precision and attach the correct unit.
  5. Use an estimate or inverse formula to catch misplaced decimals and unit mismatches.

Georgia-specific distinction

Georgia transfer tax counts each additional $100 or fractional part and intangible recording tax counts each $500 or fractional part, so those statutory units round up. Property-tax, commission, and ratio calculations use ordinary rounding unless the question directs otherwise.

Worked examples

Example 1: Statutory round-up differs from nearest

Scenario. A qualifying Georgia note is $250,001.

  1. $250,001 / $500 = 500.002 units.
  2. The fractional part requires 501 units, not 500.
  3. Tax = 501 x $1.50 = $751.50.

Answer. The intangible recording tax is $751.50.

Reasonableness check. Ordinary nearest-unit rounding would undercount a statutory fractional unit.

Example 2: Preserve intermediate precision

Scenario. A 365-day proration allocates 47 days of a $5,000 annual amount. Round the final money amount to cents.

  1. Daily rate = $5,000 / 365 = $13.698630...
  2. Multiply without first rounding: $13.698630... x 47 = $643.835616...
  3. Round the final result to $643.84.

Answer. The proration is $643.84.

Reasonableness check. Rounding the daily rate too early can change the final cents.

Common exam traps

  • Using ordinary nearest rounding where Georgia law says any fraction counts
  • Rounding each intermediate step and accumulating error
  • Reporting 0.08 when the answer asks for 8%
  • Giving square feet when the question asks for acres

Original practice questions with detailed explanations

These original instructional questions map to the July 1, 2026 PSI outline. They are not copied from PSI or any live examination. Write the setup before opening the explanation.

Question 1

A Georgia intangible-tax calculation produces 640.1 statutory $500 units. How many units apply?

  1. A. 640
  2. B. 640.1
  3. C. 641
  4. D. 650
Show answer and explanation →

Answer: C. 641

Any fractional part of a $500 unit counts, so the statutory unit count rounds up to 641.

Question 2

When should ordinary intermediate results usually be rounded?

  1. A. After every keystroke
  2. B. At the final requested step
  3. C. Before converting units
  4. D. Never under any circumstance
Show answer and explanation →

Answer: B. At the final requested step

Preserve precision through the work and round the final answer unless a special rule requires an earlier statutory unit count.

Question 3

An LTV calculation returns 0.775 and the question asks for a percentage. What should be reported?

  1. A. 0.775%
  2. B. 7.75%
  3. C. 77.5%
  4. D. 775%
Show answer and explanation →

Answer: C. 77.5%

Multiply the decimal by 100 and attach the percent sign: 77.5%.

Mastery tracking

Mark this calculation mastered only when every statement is true.

  • I identify special statutory rounding before calculating.
  • I preserve precision through ordinary intermediate steps.
  • I report the exact unit requested.
  • I distinguish a decimal rate from a percentage.
  • I use estimation to catch order-of-magnitude mistakes.

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Rounding and Units on Real Estate Exam Math questions

Facts checked against the current PSI Candidate Information Bulletin and GREC sources. Last reviewed August 2, 2026. Editorial standards.

Is Rounding and Units on Real Estate Exam Math on the Georgia real estate exam?

It maps to XI Real Estate Calculations: accurate computation, statutory transfer fees, ratios, time, and measurement units in the official Real Estate Calculations area. PSI assigns 7% of the 100-question national portion to the complete area but does not guarantee a count for this individual formula.

What formula should I use for Rounding and Units on Real Estate Exam Math?

Exact statutory unit rule first; otherwise preserve precision and round the final requested unit

What Georgia-specific point should I remember?

Georgia transfer tax counts each additional $100 or fractional part and intangible recording tax counts each $500 or fractional part, so those statutory units round up. Property-tax, commission, and ratio calculations use ordinary rounding unless the question directs otherwise.

Can I use a calculator on the Georgia real estate exam?

PSI provides an online calculator during the examination. Handheld calculators are prohibited. Write the setup and label the units before entering numbers.