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When calculating your SAT® score, there are a few key components:įirst, there is your reading test raw score. The test went back to being scored out of a total possible 1600 points.

When the SAT® revamped in March of 2016, scores became easier to calculate. The number of significant figures is still determined by the accuracy of the initial speed value in m/s – for example, 15.23 × 3.6 = 54.83.If you’re looking for free help as you start your SAT® test prep, be sure to explore our SAT® sections for more review articles ( Math, Reading, Writing ) How do you calculate SAT® scores? For example, when using the speed conversion, you need to multiply the value in m/s by 3.6 if you want to obtain the value in km/h. They can be treated as if they had an infinite number of significant figures.

Exact values, including defined numbers such as conversion factors and 'pure' numbers, don't affect the accuracy of the calculation.

So for this example, the final steps of the calculation are 12.1̲3 + 5.̲848 = 17.̲978 = 18.̲0. You shouldn't round the intermediate result and only apply the significant digit rules to the final result. Now, note that the result of the multiplication operation is accurate to 2 significant figures and, more importantly, one decimal place. For example, for the calculation 12.1̲3 + 1.7̲2 × 3.̲4, after the first step, you will obtain the following result: 12.1̲3 + 5.̲848.

If, however, you do mixed calculations – addition/subtraction and multiplication/division – you need to note the number of significant figures for each step of the calculation.

If performing multiplication and division only, it is sufficient to do all calculations at once and apply the significant figures rules to the final result.

If performing addition and subtraction only, it is sufficient to do all calculations at once and apply the significant figures rules to the final result.So the result must also be given to three significant figures: 4.32̲1 × 3.1̲4 = 13.̲56974 = 13.̲6. For example, when performing the operation 4.321 × 3.14, the value with the least significant figures ( 3) is 3.14. For multiplication and division operations, the result should have no more significant figures than the number in the operation with the least number of significant figures.

The position of the last significant number is indicated by underlining it. For example, when performing the operation 128.1 + 1.72 + 0.457, the value with the least number of decimal places ( 1) is 128.1.

For addition and subtraction operations, the result should have no more decimal places than the number in the operation with the least precision.