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Unformatted text preview: the numbers in your problem. . 2.34 + 6.5343 should be rounded to hundredths place or 8.87. 5 1.035 should be rounded ones place or 4. 500 + 50 + 2 should be rounded to hundreds place, or 600. 6. When multiplying or dividing, the answer should be rounded to the fewest digits of the numbers in the problem. 5.23 x 6.7 should be rounded to 2 significant digits. Placeholder zeros are added when needed to place decimal. When numbers are written in scientific notation only the significant digits are written as 500 is 5 x 10 2 but 0.500 is written 5.00 x 101 . The placeholder zeros are dropped as they are no longer needed to locate the decimal, but the significant zeros should be written in the scientific notation. One other difficulty students have in scientific notation is deciding on the sign of the exponent. They fail to recognize tens with negative exponents are not negative numbers, but are located between 0 and 1....
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 Spring '16
 Scientific Notation, Addition, Decimal, Exponentiation, zero digits

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