Maths Flashcards 2.5 / 5 based on 3 ratings ? MathematicsAlgebraGCSEOCR Created by: Daisy MunnCreated on: 15-12-12 15:55 Equation In equations a letter represnts a specific unknown number to be found. For example: 5x=20 1 of 26 Identity An identity is true for all vlaues of the letters used and is used when writing expressions more simply. For example: x+x=2x 2 of 26 Formula A formula is used when we need to substitute different values of a variable.For example: ∏r^2 3 of 26 Expression Expressions can be simplified by collecting like terms or using powers. For example: 2x+x simplifies to 3x 4 of 26 1g=?mg 1g=1000mg 5 of 26 1kg=?g 1kg=1000g 6 of 26 1 tonne=?kg 1 tonne=1000kg 7 of 26 1 litre= ?ml 1 litre=1000ml 8 of 26 1ml= ?cm^3 1ml=1cm^3 9 of 26 1 foot=? inches 1 foot= 12 inches 10 of 26 1 yard=?feet 1 yard=3 feet 11 of 26 1 pound(lb) =?ounces 1 pound(lb) =16 ounces 12 of 26 1 stone=?pounds 1 stone= 14 pounds 13 of 26 1 gallon=?pints 1 gallon=8 pints 14 of 26 1 foot=?cm 1 foot=30cm 15 of 26 1 mile=?km 1 mile=1.6km 16 of 26 5 miles=?km 5 miles=8km 17 of 26 3 feet=?metre 3 feet+1 metre 18 of 26 1kg=?lb 1kg=2.2lb 19 of 26 1lb=?kg 1lb=0.5kg 20 of 26 2 pints=?litre 2 pints=1 litre 21 of 26 1 gallon=?litres 1 gallon= 4.5 litres 22 of 26 Covert 455mm to m 1m=100mm 455/1000=0.455m 23 of 26 Convert 4.63 tonnes into kg 1 tonne=1000kg 4.63x1000=4630kg 24 of 26 Covert 19 pints to gallons 1 gallon=8pints 19/8=2.375gallons or 2 gallons and 3 pints 25 of 26 Convert 15miles into km 5 miles=8km 15 miles=3x8=24km 26 of 26
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