WEEK ONETOPIC: RATIO AND PERCENTAGEMeaning of ratioThe relation between two quantities (both of the same units) obtained by dividing one quantity with another is called ratio. A ratio can be denoted by using the symbol ( : ).

WEEK TWOTOPIC: SIMPLE PROBLEMS ON PERCENTAGESPercentages are fractions with 100 as a denominatorEXAMPLE 1Change the following fractions to percentages 2/5 = 2/5 of 100 = 2/5 × 100 = 200 = 40% 5

WEEK THREETOPIC: MONEY: PROFIT AND LOSS

WEEK FOURTOPIC: SIMPLE INTERESTMeaning of interest: interest means the extra money that you [pay back when you borrow money that you receive when you invest money.

WEEK FIVETOPIC: PROFIT AND LOSS PERCENTProfit or loss per cent is expressed as a percentage of the cost price

WEEK SIX TOPIC: PERIMETER OF PLANE SHAPES

WEEK SEVENTOPIC: AREA OF RIGHT ANGLED TRIANGLEA right-angled triangle has 3 – sides

WEEK EIGHT TOPIC: VOLUME OF CYLINDER

WEEK NINE & TENTOPIC: WEIGHTThe units used for measuring weight are kilogram (kg) and gram (g).1000 gram = 1kg1000kg = 1 ton