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Measurement MILLILITRES AND CENTILITRES 10 millilitres = 1 centilitre Centilitres are sometimes used to label liquids. Centilitres can be written as cl. A. f lex i p 1) If 1 cl = 10 ml then 2 cl = ____ ml 5 cl = ____ ml 10 cl = ____ ml 9 cl = ____ ml 15 cl = ____ ml 18 cl = ____ ml 7½ cl = ____ ml 11.5 cl = ____ ml 2) Marie has a jug marked in millilitres. She needs to dilute 5 centilitres of liquid in 20 centilitres of water. How many millilitres of each will she use instead? 3) Can you work out how many centilitres there are in a litre (1000ml)? ac k s 1 Measurement 4) Kerry takes some cough medicine. She takes 1cl of medicine 3 times a day. How many cl does she take each day? How many ml does she take each day? How many millilitres are left in a 250 ml bottle after 3 days? How many teaspoons (5ml) is this? 5) Arthur buys a bottle of wine for Susie's birthday. It contains 75cl of wine. How many ml is this? How many 125ml glasses are there in the bottle? Arthur drinks 200 ml, and Susie drinks 270ml. How many centilitres are left in the bottle? B. 1) How many centilitres will there be in: 150ml 80ml 750ml 120ml 30ml 155ml 500ml 15ml 250ml 2) John needs to dilute 10ml of medicine in 120ml of water. How many cl of each will this be? f lex i p 2 ac k s Measurement 3) Convert this recipe from millilitres to centilitres: Calypso punch 750ml red wine 250ml apple juice 250ml pineapple juice 150ml lime juice Add cinnamon, nutmeg, sugar and a bay leaf Check your answers, then discuss with your tutor what you need to work on next. f lex i p 3 ac k s Measurement Answers Millilitres And Centilitres A B 1) 2 cl 5 cl 10 cl 9 cl = = = = 20 ml 50 ml 100 ml 90 ml 2) 50 ml liquid 200 ml water 3) 100 centilitres in 1 litre 4) 3 cl each day 30 ml each day 160 ml are left 32 teaspoons left 5) 750 ml 6 glasses 47 cl are drunk so 28 cl are left 1) 15 cl 75 cl 3 cl 50 cl 25 cl 2) 1 cl medicine 12 cl water 3) 75 cl wine 25 cl apple juice 25 cl pineapple juice 15 cl lime juice 15 cl 18 cl 7½ cl 11.5 cl = = = = 150 ml 180 ml 75 ml 115 ml 8 cl 12 cl 15.5 cl 1.5 cl f lex i p 4 ac k s