To find the length of the wood after the carpenter sawed off 5.7 centimeters, you can subtract the length that was sawed off from the original length.
Starting length: 63.218 cm
Length sawed off: 5.7 cm
Now, perform the subtraction:
\[ 63.218 , \text{cm} - 5.7 , \text{cm} = 63.218 , \text{cm} - 5.700 , \text{cm} \] \[ = 63.218 , \text{cm} - 5.700 , \text{cm} = 57.518 , \text{cm} \]
So, the length of the piece of wood now is 57.518 centimeters.