Yes they are they are very significant
Four - zeros between significant digits are significant.
Yes - zeros in-between significant digits are significant.
Five. Zeros in between significant digits are significant and trailing zeros that are after the decimal are significant.
Five. All nonzero digits are significant and zeros in between significant digits are significant.
Five - any zeros after the decimal are significant unless they're placeholders. Any zeros between significant digits are significant.
Five - zeros between significant digits are always significant.
Four - zeros between significant digits are significant.
Three - zeros between significant digits are significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
Five. All nonzero digits are significant and zeros in between significant digits are always significant.
three, leading zeros are not significant and trailing zeros are significant if there is a decimal. trailing zeros are not significant if there is no decimal zeros in the middle of numbers are significant