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How to Convert from Other Bases to Base 10 — Easy Step-by-Step Tutorial for Beginners
Are you struggling to understand how to convert numbers from other bases to base 10 (decimal)?
Don’t worry — this video breaks it all down in the simplest and clearest way possible, with examples you can easily follow!

In this tutorial, you’ll learn how to convert numbers from bases like base 2 (binary), base 5, base 8 (octal), and other bases into base 10 — using a quick, step-by-step method that works every time.

By the end of this video, you’ll confidently be able to:
Understand what number bases are and how they work
Convert from any base to base 10 using the expanded form method
Solve exam-style questions correctly and fast
Avoid common mistakes students make during base conversions

This lesson is perfect for secondary school, WAEC, JAMB, NECO, GCSE, or SAT students, or anyone learning math or computer science basics.