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Value Mass of the Earth Speed of Light Time since the dinosaurs Unit kg m/s years Thickness of a sheet of paper m Number of seconds in a day s Mass of a hydrogen atom g Area of North America km2 Mass of the Earth Speed of Light Time since the dinosaurs Value Unit 6 x 1024 kg m/s years Thickness of a sheet of paper m Number of seconds in a day s Mass of a hydrogen atom g Area of North America km2 Value Unit Mass of the Earth 6 x 1024 kg Speed of Light 3 x 108 m/s Time since the dinosaurs years Thickness of a sheet of paper m Number of seconds in a day s Mass of a hydrogen atom g Area of North America km2 Value Unit Mass of the Earth 6 x 1024 kg Speed of Light 3 x 108 m/s 6.4 x 107 years Time since the dinosaurs Thickness of a sheet of paper m Number of seconds in a day s Mass of a hydrogen atom g Area of North America km2 Value Unit Mass of the Earth 6 x 1024 kg Speed of Light 3 x 108 m/s 6.4 x 107 years 8 x 10-5 m Time since the dinosaurs Thickness of a sheet of paper Number of seconds in a day s Mass of a hydrogen atom g Area of North America km2 Value Unit Mass of the Earth 6 x 1024 kg Speed of Light 3 x 108 m/s 6.4 x 107 years 8 x 10-5 m 8.6 x 104 s Time since the dinosaurs Thickness of a sheet of paper Number of seconds in a day Mass of a hydrogen atom Area of North America g km2 Value Unit Mass of the Earth 6 x 1024 kg Speed of Light 3 x 108 m/s 6.4 x 107 years 8 x 10-5 m 8.6 x 104 s 1.66 x 10-24 g Time since the dinosaurs Thickness of a sheet of paper Number of seconds in a day Mass of a hydrogen atom Area of North America km2 Value Unit Mass of the Earth 6 x 1024 kg Speed of Light 3 x 108 m/s 6.4 x 107 years 8 x 10-5 m 8.6 x 104 s 1.66 x 10-24 g 2.42 x 107 km2 Time since the dinosaurs Thickness of a sheet of paper Number of seconds in a day Mass of a hydrogen atom Area of North America ‘Big’ Numbers 1 x 103 Thousand 1 x 106 Million 1 x 109 Billion 1 x 1012 Trillion ‘Big’ Numbers 1 x 1015 Quadrillion - The number of grains of sand on a beach - Market price of all the assets in the World - Number of ants in the World ‘Big’ Numbers 1 x 1018 Quintillion - Distance (in miles) to the furthest object you can see with the naked eye ‘Big’ Numbers 1 x 1078 Number of atoms in the Universe 1 x 10100 A Googol Calculations using standard form EXAMPLE (2 x 103) x (4 x 104) = (2 x 4) x (103 x 104) = 8 x 107 Calculations using standard form Try these 1. 2. 3. 4. 5. 6. 7. (2 x (3 x (5 x (2 x (3 x (4 x (3 x 106) x (2 x 103) 107) x (1 x 102) 102) x (1 x 104) 108) x (4 x 103) 10-1) x (3 x 105) 103) x (2 x 10-5) 102) x (4 x 103) Harder! Calculations using standard form Try these 1. 2. 3. 4. 5. 6. 7. (2 x (3 x (5 x (2 x (3 x (4 x (3 x 106) x (2 x 103) 107) x (1 x 102) 102) x (1 x 104) 108) x (4 x 103) 10-1) x (3 x 105) 103) x (2 x 10-5) 102) x (4 x 103) 4 x 109 3 x 109 5 x 106 8 x 1011 9 x 104 8 x 10-2 1.2 x 106