Calculations using significant figures worksheet answers

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There may be differences between the worksheet copies and the copies with the answers listed. That's because I used some older worksheets with the answers already done with the answers. Someday I hope to reconcile them. Significant Figures, Answers; Scientific Notation, Answers

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Number of Significant Figures 2.98 3 2.980 4 0.0298 3 0.0029 2 75 Calculations—All figures should be retained until the calculations have been 76 completed. Only the appropriate number of significant figures, however, should be 77 retained in the final result. 78 Determining the number of significant figures— Example: 5,007 has 4 significant figures. 3) Trailing zeros in a number are significant ~nlv if the number contains a decimal point. Example: 100.0 has 4 significant figures. 100 has 1 significant figure. I 4) Zeros in the beginning of a number whose only function 1 is to place the decimal point are not significant. , Example: 0.0025 has 2 ...

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Give your answer correct to 3 significant figures. b) Calculate the upper bound for the perimeter of the rectangle. V = I R 3) The voltage V of an electronic circuit is given by the formula where I is the current in amps and R is the resistance in ohms. Given that V = 217 correct to three significant figures, R = 12.4 correct to three significant figures, Jan 28, 2010 · A neat smartboard with a few nice examples, plus a worksheet with answers. Also some harder examples at the end. Works well with both key stages 3 and 4. I usually do this with a domino activity too, but I can't upload it on here.

Add, subtract, multiply and divide significant figures. Enter numbers, scientific notation or e notation and select the operator. The calculator does the math and provides the answer rounding to the correct number of significant figures (sig figs). You can use this calculator to verify your own calculations using significant figures.If we use up all the methane then: 1 mol CH 4 = 2 mol O 2 0.25 mol x x = 0.50 mol of O 2 would be needed. We have 1.25 mol of O 2 on hand. Therefore we have 0.75 mol of O 2 in excess of what we need. If the oxygen in is excess, then the methane is the limiting reactant. Confirmation: If we use up all the oxygen then