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• ﻿
•   Numbers in scientific notation can be added and subtracted, either directly or by rewriting them in standard form.
• ﻿Writing A Number In Scientific notation
• what the heck is that this sounds hard.
• WHHHHAT!!!!﻿
• WHAT!
• ﻿
•                                3.9
• Step one: Place the decimal point
• Step Two:   Count the number of places you moved the decimal point. (7 times)
• ﻿﻿﻿Ms. B what do we do after we count the spaces we moved the point.
• ﻿
•  Step Three: This is how its done!!!! 3.9 * 10 7
• ﻿Equal to:﻿ 39,000,000
• Step Three:  Multiply 3.9 times a power of 10.                               3.900 * 107
• ﻿
• ﻿Since 39,000,000 is grater then 1 you move the decimal to the left and the exponent on 10 is positive.
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