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Math Strategy: Backsolving
Summary
Backsolving is a strategic approach for solving algebraic and word problems on the GRE exam, offering an alternative to traditional algebraic methods. It involves starting with the middle answer choice and using it to potentially eliminate other options quickly.
- Backsolving is useful when all answer choices are numerical and can be quicker than algebra in some cases.
- Start with the middle answer choice (often C) to potentially eliminate three options based on whether it's too big or too small.
- This method requires careful consideration of the problem's logic, as increasing or decreasing values may not have straightforward effects.
- Practicing backsolving improves efficiency and effectiveness, making it a valuable tool in the GRE test-taker's arsenal.
- It's important to verify the final answer if time allows, ensuring accuracy in the selection.
Chapters
00:00
Introduction to Backsolving
01:01
Executing the Backsolving Method
07:35
Applying Backsolving to Complex Problems
