All of the digits are significant:
Seven of them.
In 1000000 there is one significant figure.
3 in A+
1000000
1000000
It has 4. Every 0 after a decimal and after a significant digit is significant.
In 1000000 there is one significant figure.
One significant figure.
1000000) has 1 significant figure and a least significant decimal of 6.
All digits are significant in this case. Any digit after a decimal point is a significant digit.
4 significant digits.
Three of them
There are four of them
Four
3 in A+
1000000
1000000
It has 4. Every 0 after a decimal and after a significant digit is significant.