# JSS 2 Mathematics (1st, 2nd & 3rd Term) ## ALGERAIC FRACTIONS

ALGERAIC FRACTIONS To add or subtract fractions with different denominators, first change them to equivalent fractions. This is done by finding the L C M of the denominators Example1: Simplify… Read More »ALGERAIC FRACTIONS ## ALGEBRAIC EXPRESSION

ALGEBRAIC EXPRESSION See also MULTIPLICATION AND DIVISION OF DIRECTED NUMBERS APPROXIMATION AND ESTIMATION ARITHMETIC FRACTIONS HIGHEST COMMON FACTOR AND LOWEST COMMON FACTOR ## MULTIPLICATION AND DIVISION OF DIRECTED NUMBERS

MULTIPLICATION AND DIVISION OF DIRECTED NUMBERS Revision on addition and subtraction of directed numbers Note that:  (a). + + = + OR – – = + (Replacing the same signs… Read More »MULTIPLICATION AND DIVISION OF DIRECTED NUMBERS ## APPROXIMATION AND ESTIMATION

APPROXIMATION AND ESTIMATION (SIGNIFCANT AND DECIMAL PLACES) SIGNIFICANT: TO ROUNDOFF A NUMBER CHANGE 0,1,2,3,4 TO 0 WHILE 5,6,7,8,9 TO 1 AND ADD IT TO THE NEXT NUMBER Example 1: round… Read More »APPROXIMATION AND ESTIMATION ## ARITHMETIC | SIMPLE INTEREST, PROFIT AND LOSS, DISCOUNT AND COMMISSION

HOUSEHOLD ARITHMETIC (SIMPLE INTEREST, PROFIT AND LOSS, DISCOUNT AND COMMISSION) PROFIT AND LOSS When a trader buys or sells goods, the price at which he /she sells is called selling… Read More »ARITHMETIC | SIMPLE INTEREST, PROFIT AND LOSS, DISCOUNT AND COMMISSION ## 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… Read More »FRACTIONS, RATIO AND PERCENTAGES ## 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 ## WHOLE NUMBER AND DECIMALS NUMBERS

WHOLE NUMBER AND DECIMALS NUMBERS See also SIMPLE EQUATIONS INVOLVING FRACTIONS MEASURE OF CENTRAL TENDENCY Data Presentation CHANGE OF SUBJECT OF A FORMULA WORD PROBLEMS