In 10.00, the first significant figure is the "1", and the last significant figure is the last "0", because zeroes to the right of the decimal are significant. The two central zeroes are also significant because they are between significant figures, so 10.00 has 4 significant figures.
square numbers 1 to 1000
The figure 18.03 has a total of four significant numbers
There are 90 palindromic numbers between 100 and 1000
They are 4 significant DIGITS, not numbers! It is only 1 number.
What are the Adam numbers between 100 to 1000
One
1000 with a vinculum (horizontal bar) over the first zero.
231.57 has five significant figures/numbers. All the numbers in 231.57 are significant.
1000 is written with one significant figure, with only the 1 being a significant figure.
All nonzero numbers are significant.
square numbers 1 to 1000
Three. All nonzero numbers are significant, and any zeros in between significant numbers are significant.
1 significant figure.
The figure 18.03 has a total of four significant numbers
Answer: There are six. Answer: There is no such thing as "significant numbers". I assume you mean "significant digits". All digits are significant in this case - a zero (or more than one zero) between other digits is always significant.
There are 90 palindromic numbers between 100 and 1000
Because 10.00400 is 10.004, this has five significant digits (numbers).