WEIGHT
The units used for measuring weight are kilogram (kg) and gram (g). 1000 gram = 1kg 1000kg = 1 ton EXAMPLE1 Change to kilogram 2000g to kilogram 1000g = 1kg 2000g = m Cross multiply 1000 × m = 2000 x 1 1000m = 2000 m = 2000 = 2kg 1000 […]
Mathematics (All Classes)
MENSURATION
MENSURATION See also Symmetric Properties of Roots Sum & Product of Roots of a Quadratic Equation Quadratic Formula Completing the square method Quadratic Equation by Factorization Method
QUADRATIC EQUATIONS
QUADRATIC EQUATIONS CONTENT Construction of Quadratic Equations from Sum and Product of Roots. Word Problem Leading to Quadratic Equations. CONSTRUCTION OF QUADRATIC EQUATIONS FROM SUM AND PRODUCT OF ROOTS We can find the sum and product of the roots directly from the coefficient in the equation. It is usual to call the roots of
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PERCENTAGE ERROR
PERCENTAGE ERROR See also LOGARITHM OF NUMBERS MENSURATION Symmetric Properties of Roots Sum & Product of Roots of a Quadratic Equation Quadratic Formula
SIMPLE PROBLEMS ON PERCENTAGES
Percentages are fractions with 100 as denominator EXAMPLE 1 Change the following fractions to percentages 2/5 = 2/5 of 100 = 2/5 × 100 = 200 = 40% 5 EXAMPLE 2 Change these percentage to fractions 75% = 75 = 15 = 3 100 20 4 EXAMPLE 3 Change 7 ½% to fractions in
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HIGHEST COMMON FACTOR AND LOWEST COMMON FACTOR
HIGHEST COMMON FACTOR AND LOWEST COMMON FACTOR See also WHOLE NUMBER AND DECIMALS NUMBERS SIMPLE EQUATIONS INVOLVING FRACTIONS MEASURE OF CENTRAL TENDENCY Data Presentation CHANGE OF SUBJECT OF A FORMULA
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SIMPLE EQUATION AND VARIATION
SIMPLE EQUATION AND VARIATION See also SQUARES OR POWERS OF NUMBERS LOGARITHMS OF WHOLE NUMBERS INDICES STANDARD FORM AND APPROXIMATION MODULAR ARITHMETIC
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NUMBER BASES
NUMBER BASES /BASE NUMBER See also BASIC OPERATIONS OF INTEGER SIMULTANEOUS EQUATIONS SIMULTANEOUS EQUATIONS SIMULTANEOUS EQUATIONS QUADRATIC EQUATIONS
RULES OF BASE NUMBER
RULES OF BASE NUMBER See also NUMBER BASES BASIC OPERATIONS OF INTEGER SIMULTANEOUS EQUATIONS SIMULTANEOUS EQUATIONS SIMULTANEOUS EQUATIONS
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SIMULTANEOUS EQUATIONS 3
SIMULTANEOUS EQUATIONS See also SIMULTANEOUS EQUATIONS SIMULTANEOUS EQUATIONS QUADRATIC EQUATIONS GEOMETRIC PROGRESSION ARITHMETIC PROGRESSION (A. P)
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ARITHMETIC PROGRESSION (A. P)
ARITHMETIC PROGRESSION (A. P) CONTENT Sequence Definition of Arithmetic Progression Denotations in Arithmetic progression Deriving formulae for the term of A. P. Sum of an arithmetic series Find the next two terms in each of the following sets of number and in each case state the rule which gives the term. (a) 1, 5, 9,
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AREA OF RIGHT ANGLED TRIANGLE
A right-angled triangle has 3 – sides Example 1 Calculate the area of a triangle of height 12cm and base 13cm Solution Area of triangle = ½ x base x height = ½ x 12cm x 13cm 1 1 = 1 x 6cm x 13cm = 78cm2 EXERCISE Calculate the area of the
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Money
Addition of Money Example: find the sum of N4.36, N3.79 and N4.82 N K 4 36 + 3. 7 9 + 4. 8 2 12. 9 7 EXERCISES Add up 00, N24.70 and N32.55 20, N174.30 and N132.30 00, N152.10 and N184.20 80, N378.35 and N29.46 Fin the sum, of N168.00 and N276.00
FRACTIONS (TYPES OF FRACTIONS)
FRACTIONS (TYPES OF FRACTIONS) See also WHOLE NUMBERS ALGERAIC FRACTIONS ALGEBRAIC EXPRESSION MULTIPLICATION AND DIVISION OF DIRECTED NUMBERS APPROXIMATION AND ESTIMATION
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INDICES
INDICES See also STANDARD FORM AND APPROXIMATION MODULAR ARITHMETIC RULES OF BASE NUMBER NUMBER BASES BASIC OPERATIONS OF INTEGER
ALGEBRAIC EXPRESSION
ALGEBRAIC EXPRESSION See also MULTIPLICATION AND DIVISION OF DIRECTED NUMBERS APPROXIMATION AND ESTIMATION ARITHMETIC FRACTIONS HIGHEST COMMON FACTOR AND LOWEST COMMON FACTOR
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MEASURE OF CENTRAL TENDENCY (MEAN, MEDIAN, MODE)
MEASURE OF CENTRAL TENDENCY (MEAN, MEDIAN, MODE) See also Data Presentation CHANGE OF SUBJECT OF A FORMULA WORD PROBLEMS ALGEBRAIC PROCESSES APLLICATION OF BINARY NUMBERS
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COORDINATES AND GRAPHS
Content
a.) Cartesian plane
b.) Cartesian co-ordinate
c.) Points on the Cartesian plane
d.) Choice of appropriate scale
e.) Table of values for a given linear relation
f.) Linear graphs
g.) Graphical solutions of simultaneous linear equations
h.) Interpretation of graphs.
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FRACTIONS, RATIO AND PERCENTAGES
FRACTIONS (TYPES OF FRACTIONS), RATIO AND PERCENTAGES See also HIGHEST COMMON FACTOR AND LOWEST COMMON FACTOR WHOLE NUMBER AND DECIMALS NUMBERS SIMPLE EQUATIONS INVOLVING FRACTIONS MEASURE OF CENTRAL TENDENCY Data Presentation
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FRACTIONS, RATIOS, DECIMALS AND PERCENTAGES
Fractions and Percentages A fraction can be converted to decimal by dividing the numerator by its denominator. It can be changed to percentage by simply multiplying by 100. Example 5.1 Change 3/8 into a decimal and percentage Convert 0.145 to percentage Solution 1) 3/8 = 0.375 in decimal 3/8 x 100% = 37.5% 2) 0.145×100=14.5%
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