Question:Rounding to 2 decimals

[Ttiapurple]

hi
does anyone know how to round these numberst to 2 decimals?
1.06666667
1.11666667
3.16666667
thanks for your help

 

[pka]

hi
does anyone know how to round these numberst to 2 decimals?
1.06666667
1.11666667
3.16666667

Rules for rounding very slightly. So read your notes/textbook.
1) multiply by $\displaystyle 10^2$, 106.66667.
2) if the decimal part is at least one-half, round up 107.
3) then multiply by $\displaystyle 10^{-2}$, 1.07.

If you are to round to $\displaystyle n$ decimal places use $\displaystyle 10^n$.

 

[HallsofIvy]

Do you know what "two decimal places" means? If not look it up in your textbook.

What digit is in the third decimal place? (It happens to be the same in each of these.)

If that digit is 5 or larger, increase the digit in the second decimal place by 1 and drop all digits after it.

If that digit is less than 5, just drop all digits after it.