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Logarithm II

ClassNotes Team 4 MIN READUPDATED 4 JUL 2026

Mathematics SSS 1 First Term

WEEK 7

Logarithm II

Performance Objectives

Students should be able to;

  1. Read Tables
  2. Solve problems involving multiplication and division
  3. Solve problems related to life problems

Logarithms

Content

Logarithm and antilogarithm tables are used to perform some arithmetic basic operations namely: multiplication and division. Also, we use logarithm in calculations involving powers and roots.

The basic principles of calculation using logarithm depends strictly on the laws on indices. Recall that,

1. LogMN = LogM + LogN

2. LogMN = LogM − LogN

Hence, we conclude that in logarithm;

  1. When numbers are multiplied, we add their logarithms
  2. When two numbers are dividing, we subtract their logarithms.

Multiplication of Numbers using Logarithm Tables

Example 1: Evaluate 92.63 x…