Rounding numbers to significant number
[DOC File]UNIT 1 Notes: Scientific Notation, Significant Figures ...
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Number Round off to 1 significant fig Round off to 2 significant fig Round off to 3 significant fig Round off to 4 significant fig 26 895 32.45653 156.9823 459 789.234 293.40235 375.00876 0.00023986 1.002568 563 282 4 Complete the following tables by rounding the numbers to the given degree of accuracy.
[DOCX File]Rounding to significant figures - Weebly
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Sometimes you will be asked to round a number to a particular number of significant digits. Rules for Rounding: If the digit to the immediate right of the last significant figure is less than five, do not change the last significant digit. 2.5. 32 ( 2.53. If the digit to the immediate right of the last significant figure is five or greater, round up the last significant figure. 2.5. 36 ( 2.54. Round these numbers to 3 …
[DOC File]Estimation and Rounding
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UNIT 1 NOTES: Scientific Notation, Significant Figures & Rounding, Metric Units (Chapter 3 in your Chemistry Text) Scientific Notation. When scientists talk about very large or very small numbers, it gets difficult to name the number (e.g. a one followed by 15 zeros is quadrillion or quintillion?) and it’s painstaking to write them down.
[DOC File]SIGNIFICANT FIGURES
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The development of rounding progresses as follows: nearest 10,100 etc., specified numbers of decimal places. specified numbers of significant figures . Note: We always round up for 5 or above. WORKED EXAPMPLES. Round 74 to the nearest 10 = 70. Round 386 to the nearest 10 = 390 . Round 347.5 . to the nearest whole number = 348. to the nearest ...
Rounding to Significant Figures - Maths with Mum
Rounding to significant figures. Exercise A - Round to 1 significant figure. 320 = 5. 76 = 9. 49.5 = 475 = 6. 32654 = 1. 0. ... You should round each number to 1 significant figure before. ... Remember to show your rounded numbers. Rounding to significant figures - answers. Exercise A - …
[DOC File]Approximation Worksheet - tandrageemaths
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All nonzero numbers are significant. Zeros may or may not be significant depending on their position in the number. Examples are shown on the table below. _____ Rule Measured # of Significant . Number Figures _____ A number is a significant figure if it is. A nonzero digit 6.5 g 2. 132.34 m 5. A zero between non zero digits 305 m 3. 2.056 kg 4
[DOC File]Significant Figures and Rounding Measurements Name
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RULES FOR ROUNDING NUMBERS. 1. Determine the number of significant figures needed. 2. Move one place to the right. a. if that number is less than 5, the previous number remains the same. b. if that number is 5 or greater, round the previous number up 1.
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4. When multiplying or dividing measurements written in significant figures, show the uncertainty of your calculations by rounding off your answer to . match the same number of significant figures as your least precise measurement (the measurement with the least number of significant figures). Example: 477.85 ( 32.6 = 14.657975 = 14.7
[DOC File]SIGNIFICANT DIGITS/FIGURES
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Round off each of the following numbers to three significant figures. ... e. 87,550 f. 0.027225. 2. Put the following numbers into scientific notation and write down the number of. significant digits in each: a. 0.225 b. 2.5. ... Significant Figures and Rounding Measurements Name _____ ...
[DOC File]RULES FOR USING SIGNIFICANT FIGURES
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The number of significant figures is uncertain in a number that ends with a zero to the left of the decimal point location. The zeros in the measurement 1,300 grams could be significant or they could simply indicate where the decimal point is located. ... Rounding Numbers. Round the following to the indicated number of significant figures: (a ...
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