**Hello and Welcome!**

**The SS1 Mathematics 1st Term Lesson Notes is a compilation of notes on the following topics:**

**Lesson One: Number System – Page 2 – Click Here!
Conversion from base ten to other bases
Conversion from other bases to base ten
Conversion of Numbers from one Base to another
Conversion of Decimal Number Base to Base 10
Conversion of fractions to decimal numbers in base 10 to base two
Addition and Subtraction of Number Bases
Multiplication and Division of Number Bases
**

**Lesson Two: Fractions, Decimals and Approximations – Page 3 – Click Here!
Changing Fractions to Decimals
Changing Decimal to Fraction
Order of Magnitude
Algebraic Functions
**

**Decimal Places**

**Addition and Subtraction of Decimal**

**Multiplication of Decimal**

**Division of Decimals**

**Significant Figures**

**Nearest Whole Number, Ten, Hundred, Thousand**

Addition and Subtraction in Standard Form

Multiplication and Division in Standard Form

Addition and Subtraction in Standard Form

Multiplication and Division in Standard Form

**Lesson Three: Indices – Page 4 – Click Here!
Definition of Index
Multiplication Law
Division Law
Zero Index
Negative Index
Power Law
Fractional Index
Decimal Powers and Bases
Exponential Equation
**

**Lesson Four: Logarithm 1 (Logarithm of numbers greater than 1) – Page 5 – Click Here!
The Use of Logarithm and Anti Logarithm Tables
Characteristic of a logarithm
Mantissa of a logarithm
Logarithms of numbers greater than 1 (>1)
Anti – Logarithms of Numbers greater than 1 (>1)
Multiplication and Division of Numbers greater than 1 (> 1)
Power and Roots of Numbers greater than 1 (>1)
**

**Lesson Five: Logarithm 2 (Logarithm of numbers less than 1) – Page 6 – Click Here!
Logarithms of numbers less than 1
Multiplication and Division of numbers less than 1
Powers and Roots of numbers less than 1
**

**Lesson Six: Logarithms 3 – Page 7 – Click Here
Theory of Logarithm
Logarithms to its own base: Log**

_{a}a = 1 Addition Law: log

_{a}x + log

_{a}y = log

_{a}xy Subtraction Law: log

_{a}x – log

_{a}y = Power Law: log

_{a}X

^{n}= nlog

_{a}X Power of the base: log

_{a}

^{2}X = ½log

_{a}X Logarithm of 1: log

_{a}1 = 0 Reciprocal Law: log

_{a}M =

**Change of base:
Logarithm Involving Substitution
Logarithms Involving Equations
**

**Evaluation Tests on SS1 Mathematics 1st Term Lesson Notes – Click Here!**** **

**References**

**Senior College Mathematics – N.K. Uka (Ph.D)
Mathematics for Senior Secondary Schools – S.O. Akanbi
Comprehensive Mathematics for Senior Secondary Schools**

**Scroll Down to Select Page 2 for the next topic – Number System**

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