Multiplying significant numbers
[DOC File]Significant Figures Practice Worksheet
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Practice Problems for Significant Figures . RULE -1: If the decimal is . Present: Find the first non zero on the left, then count all digits to the . RIGHT. If the decimal is . Absent: Find the first non zero on the right, then count all digits to the . LEFT. RULE-2: Every digit in scientific notation is Significant
[DOC File]Significant Digits Handout
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Multiplying and dividing: When multiplying and dividing, all you do is see which number has the fewest significant digits, and then round your answer to that same number of digits. In this problem = 183.5534. The 0.095 in the denominator has only two significant digits, and that limits your answer to two significant digits: 180. Mixed operations
[DOC File]Significant Figure Rules
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in the starting numbers is what should appear in the answer. 2.0009375 - 1 = 1. Multiplying or dividing. The total number of significant figures in the numbers used in the calculation determines the number of sig. Figs in the answer. The number that contains the least significant figures determines how many sig. figs. should appear in the answer.
[DOC File]Year 7 - NRICH
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Make and justify estimates and approximations of calculations Make and justify estimates and approximations of calculations by rounding numbers to one significant figure and multiplying or dividing mentally Use efficient written methods to add and subtract whole numbers and decimals with up to two places. Dicey Operations* (Cryptarithms
[DOC File]Rules for Using Significant Figures in Mathematical Operations
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The last zero (in the ones place) is not significant. When multiplying or dividing, the answer will have the same amount of sig figs as the value with the least number of sig figs. If the answer has too many decimal places, round to the number of sig figs it should have. ... Write the following numbers in scientific notation. 61,050 _____ 0 ...
[DOC File]Chemistry Test: Unit 1 Review
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4. What is the result of multiplying 2.120 10 and 4 10? a. 8.48 105 d. 8.480 105 b. 8.5 105 e. 8 105 c. 8.48 103 5. Which of the following measurements contains two significant figures? a. 0.004 00 L c. 0.000 44 L b. 0.004 04 L d. 0.004 40 L 6. Which of the following measurements is expressed to three significant figures?
[DOC File]What digits are significant
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For example, “300” has one significant digit, while “3.0 x 102” has two significant digits. “602.10” has five significant digits. “2040” has three significant digits. ... When multiplying or dividing numbers, the uncertainties are converted to percentages, added together, then converted back to a number.
[DOC File]Scientific Notation, Significant Figures, and GRASS NOTE
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4. When a value is in scientific notation, the number of significant digits it has is the number of digits it has before the “X”. Example 5.003 X 10-3 has 4 digits in front of X, thus it has 4 significant digits. Significant figures or significant digits are important for accuracy of numbers as each round number has some amount of uncertainty.
[DOC File]Reading for Meaning- Significant Figures
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When multiplying or dividing, the number of significant figures retained may not exceed the least number of digits in either the of the factors √ 4. In multiplying together the following numbers their product has the correct number of significant figures: 66.45 cm x 2.00 cm x 48.2 cm= 6410 cm3. 5.
[DOC File]Scientific Notation, Metric(SI) Conversions, and ...
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Scientific Notation, Metric(SI) Conversions, and Significant Figures. Scientific Notation: In chemistry we use incredibly large and small numbers. Scientific notation – a number between 1 and 10 raised to a power of 10. Each time you move the decimal to the left, you are making the number ten times smaller you make the power of 10 one time ...
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