Q: When is the number zero not significant?

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7 of them. We're not exactly sure what that number is, but if it starts with a non-zero number and ends with a non-zero number, then everything's significant.

1.0070 has 5 significant figures. This is because when you are looking at a number with a decimal number, you start from the left and find a non-zero number. When you find the non-zero number, every number after it is significant.

1.200 has the greatest number of significant figures (four). 12000 has two significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.

There are four sig figs. Non zero numbers are significant and zeros between non-zero number are also significant :)

0.0370400 has six significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.

Related questions

It has no significant zero because It is a leading zero

Any non-zero digit, if it appears in the decimal representation of a number, is significant. A zero is significant if it is not a leading zero.

01.046

7 of them. We're not exactly sure what that number is, but if it starts with a non-zero number and ends with a non-zero number, then everything's significant.

0.50

1.0070 has 5 significant figures. This is because when you are looking at a number with a decimal number, you start from the left and find a non-zero number. When you find the non-zero number, every number after it is significant.

1.200 has the greatest number of significant figures (four). 12000 has two significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.

All of them are significant in this case. A zero, or group of zeros, between non-zero digits is always significant.

There are four sig figs. Non zero numbers are significant and zeros between non-zero number are also significant :)

Because this number does not have a decimal point, to count significant digits, we start at the right and start counting from the first non zero number. The first non zero number is 6 and this number has 4 significant digits.

you do not always have to put it there, but some teachers want you to. hope this helped. No. Not unless there is another real (1-9) number to the left of the zero. If, or instance, your number is 0.45 only the 4 and 5 are significant. But, if you have 70.45 then the zero IS significant.