EPISODE · Aug 29, 2026 · 3 MIN
Navy OAR Exam Prep 29, Estimation Mental Math and Answer Choices
from Military Exam Prep
This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - To use rounding and compatible numbers to simplify complex calculations into manageable mental math problems on the OAR. - How to leverage fraction benchmarks like 33% (1/3) to quickly estimate percentages of numbers without a calculator. - To master manipulating powers of ten for handling large numbers and decimals efficiently under time pressure. - How to employ the "bounding" technique by finding high and low estimates to narrow down the possible range for the correct answer. - Why you must use the provided multiple-choice options as a strategic guide to determine the required level of precision for your estimation. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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