Significant figures. For example, 3.4953729 to 3 significant figures would be 3.495
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0.6851 to 4 decimal places 0.685 to three decimal places 0.69 to two decimal places 0.7 to one decimal place
"Decimal places".
To find the number of decimal places in a product of decimal numbers, add up the total number of decimal places in each of the factors. For example, if you have 2.5 multiplied by 4.75, there are two decimal places in 2.5 and two decimal places in 4.75, so the product will have a total of four decimal places.
how many decimal places to the rigth do we move the decimal to point to change km2 to m2
three