Number Bases: Addition, Subtraction, Multiplication, Division & Equations

This lesson teaches the four basic operations (+, −, ×, ÷) on numbers in bases other than 10, plus how to solve equations involving unknown number bases. You’ll learn how to add and subtract by carrying/borrowing in the given base (not base 10), multiply and divide using base-specific place values, and set up and solve equations where the base itself is the unknown — a common WAEC/JAMB question type. Step-by-step worked examples make each method easy to follow.

Perfect for students preparing for WAEC, NECO, and JAMB Mathematics.