# Significant figures calculator addition

##### [DOC File]Scientific Notation: Adding and Subtracting

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(Use correct number of significant figures. Use correct scientific notation.) Note: If a power of ten is not expressed, it is understood to be 100, which equals 1. Thus, 4.0 is understood to be 4.0 x 100. DIVISION: Divide the numbers as in any division problem. Subtract the denominator power of ten exponent from the numerator power of ten ...

##### [DOC File]UNIT 1 Notes: Scientific Notation, Significant Figures ...

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Rounding with Significant Figures. There are only two rules that you need to conserve significant figures in calculations. Conserving significant figures means that you may need to round the answer to a problem. Normal rounding rules apply. Addition/Subtraction Round your answer to the same order as the LEAST PRECISE number in the calculation.

##### [DOC File]Mathematical Operations using Scientific Notation

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Addition and Subtraction. Examples: Add 4.2x103kg and 6.39x103kg. In your calculator type 4.2EE3 + 6.39EE3= Your answer on your calculator is 10590. However, this is not the correct answer because it is not in significant figures, and you are missing your unit. Remember the rules for addition says to line the numbers in columns and draw your line.

##### [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]Chapter 1 Chemistry: Matter and Measurement

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Example 1L.2 State the number of significant figures in the following set of measurements: 1.2304 mm. 1.23400 cm. 1.200 x 105 mL. 0.0230 m. 0.02 cm. 8 ounces = 1 cup. 30 cars in the parking lot. C. General Rounding Rule: When a number is rounded off, the last digit to be retained is increased by one only if the following digit is 5 or greater.

##### [DOC File]SIGNIFICANT FIGURES

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Significant figures aren’t very important in everyday measurements. For example, the speedometer in Figure 1 measures speed in miles per hour and kilometers per hour. However, it is only precise to a small number of sig figs: 1. It is impossible to say, for instance, that …

##### [DOC File]Rules for Using Significant Figures in Mathematical Operations

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When performing a calculation that involves both multiplication or division and addition or subtraction, you must round in between steps. That is, you must round between moving from a multiplication or division step to an addition or subtraction step. Practice: Determine the number of significant figures in the following measurements. 0.0042 m

##### [DOC File]www.dot.state.oh.us

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Report results 100 mg/L to 3 significant figures. Example; 123.4 mg/L sould be 123 mg/L. Pollution Prevention/Waste Disposal. Dispose of used filters in solid waste drum. The filtrate should be disposed of down the drain with running water ...

##### [DOC File]1. Significant Figures

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10. ( Calculate the volume of the object with the data collected from each lab group. Record the answer in Table 7 below. Be sure to use the correct number of significant figures. 11. ( Explain how the number of significant figures was decided when recording the volume. Part 3 – Addition Problems with Significant Figures. 12.

##### [DOC File]Math With Significant Figures

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The answer to this problem would be 8.6 (which was rounded from the calculator reading of 8.55). Why? 2.5 has two significant figures while 3.42 has three. Two significant figures is less precise than three, so the answer has two significant figures. Example #2: How many significant figures will the answer to 3.10 x 4.520 have? You may have ...

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