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Scientific Notations - Operations Addition and Subtraction 1 st Convert one of the numbers so the exponents match 2 nd Add or subtract the decimal numbers 3 rd keep your exponent the same 4 th if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form

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Scientific Notations - Operations Addition and Subtraction 1 st Convert one of the numbers so the exponents match 2 nd Add or subtract the decimal numbers 3 rd keep your exponent the same 4 th if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form

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Scientific Notations - Operations Addition and Subtraction 1 st Convert one of the numbers so the exponents match 2 nd Add or subtract the decimal numbers 3 rd keep your exponent the same 4 th if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form ** if you must move the decimal to the right to convert, the exponent decreases

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Scientific Notations - Operations Addition and Subtraction 1 st Convert one of the numbers so the exponents match 2 nd Add or subtract the decimal numbers 3 rd keep your exponent the same 4 th if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form

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Scientific Notations - Operations Addition and Subtraction 1 st Convert one of the numbers so the exponents match 2 nd Add or subtract the decimal numbers 3 rd keep your exponent the same 4 th if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form

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Scientific Notations - Operations Addition and Subtraction 1 st Convert one of the numbers so the exponents match 2 nd Add or subtract the decimal numbers 3 rd keep your exponent the same 4 th if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form

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Scientific Notations - Operations Addition and Subtraction 1 st Convert one of the numbers so the exponents match 2 nd Add or subtract the decimal numbers 3 rd keep your exponent the same 4 th if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form

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Scientific Notations - Operations Addition and Subtraction 1 st Convert one of the numbers so the exponents match 2 nd Add or subtract the decimal numbers 3 rd keep your exponent the same 4 th if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form

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Scientific Notations - Operations Addition and Subtraction 1 st Convert one of the numbers so the exponents match 2 nd Add or subtract the decimal numbers 3 rd keep your exponent the same 4 th if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form

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Scientific Notations - Operations Multiplication 1 st Multiply the numbers preceding the power of 10 2 nd Add the exponents of the powers of ten 3 rd if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form

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Scientific Notations - Operations

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Division 1 st Divide the numbers preceding the power of 10 2 nd Subtract the exponents of the powers of ten 3 rd if the new decimal value is not between 1 and 10, rewrite your answer in scientific notation form

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Scientific Notations - Operations

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Practice: a) 27.68 cm –14.369 cm = b) 6.54 m x 0.37 m = c) 40.8 m 2 5.050 m =

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