I know the rules of significant figueres, but what confuses methe most is when t

Question

I know the rules of significant figueres, but what confuses methe most is when to apply it.. like should i apply it in the middleof operations or should i wait till i get the final result and thenround off which will give me a more precise answer? especially ifthe question includes a series of addition and multiplication forinstance.. thanks I know the rules of significant figueres, but what confuses methe most is when to apply it.. like should i apply it in the middleof operations or should i wait till i get the final result and thenround off which will give me a more precise answer? especially ifthe question includes a series of addition and multiplication forinstance.. thanks

Explanation / Answer

If the question includes a series of addition and multiplication,you need to round off the answer before the operation changes. Thatis, if you have done an addition and need to do a multiplication ordivision next, you need to round off to the correct number ofsignificant figures before moving forward. But during a series of only addition/ subtraction ormultiplication/ division, you can leave the rounding off till thelast step. Only you have to remember the number of significantfigures in the original measurement. This is the general procedure followed in most texts. Your text maydiffer slightly. Hope this helps.

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