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"When multiplying several quantities, the number of significant figures in the final

answer is the same as the number of significant figures in the quantity having the

lowest number of significant figures. The same rule applies to division."

My question is: if i have to multiply 5 x 7 the answer would be 35 but if i apply the law the result is 3 x 10^1 is that right ? because i have to use the same nbumber of significant figures of the number in the operation that has less significant figures, in my case '5' and '7' both have 1 significant figure.

Is that correct ? if not, how should i think about it?