Skip to content
spmaddmath.com.my
Tuition

Study

SyllabusFormulasMethodsExam & PapersTools
LocationsPricingBlogOur TeachersContact
EN

Glossary

Common Logarithm

A common logarithm is a logarithm with base ten, written simply as logx\log x or lgx\lg x. Because our number system is base ten, common logarithms are handy for very large or very small numbers and appear on most calculators.

For example log1000=3\log 1000=3.

Meaning

A common logarithm is a logarithm with base ten, written simply as logx\log x or lgx\lg x. Because our number system is base ten, common logarithms are handy for very large or very small numbers and appear on most calculators.

For example log1000=3\log 1000=3.

Where it appears in Add Math

You meet Common Logarithm in the Indices, Surds and Logarithms chapter of SPM Additional Mathematics. Knowing the term precisely matters in the exam: questions often hinge on reading a keyword correctly, and because SPM marking is analytic, using the right definition in your working helps secure method marks.

Our teachers make sure a student can not only recite what Common Logarithm means but use it fluently in a full solution.

The term in three languages

Because the SPM Add Math paper is bilingual (BM/EN), it helps to know this term in each language: Common Logarithm (EN) · Logaritma Biasa (BM) · 常用对数 (中文)

Get 1-to-1 help.

Book a Trial Class
Written by the spmaddmath.com.my editorial team.· Last updated 5 September 2026

Ready to get started?

Book a Trial Classfrom RM50/hr · One-hour paid trial · Same-day reply
Book a Trial ClassOne-hour paid trial · Same-day reply