How do you round to 1 sf -6.4253

1.	How do you round to 1 sf -6.4253
Answer» look at the first non-zero digit if rounding to one significant figure look at the digit after the first non-zero digit if rounding to two significant figures draw a vertical line after the place VALUE digit that is required look at the NEXT digit if it's 5 or more, increase the previous digit by one if it's 4 or LESS, keep the previous digit the same fill any spaces to the right of the line with zeros, STOPPING at the DECIMAL point if there is one

Answer»

look at the first non-zero digit if rounding to one significant figure

look at the digit after the first non-zero digit if rounding to two significant figures

draw a vertical line after the place VALUE digit that is required

look at the NEXT digit

if it's 5 or more, increase the previous digit by one

if it's 4 or LESS, keep the previous digit the same

fill any spaces to the right of the line with zeros, STOPPING at the DECIMAL point if there is one

Discussion