8.EE.3&4Scientific Notation

Yes, because the decimal moves past six zeros and the two which is a total of seven digits.

No, because even though the decimal moved past 7 digits, the standard number is extremely small, so the exponent should be -7.

No, because 0.000000215 is

Yes, because both the standard form number and the scientific notation number are positive values.

32

0.0000032

3,200,000

320,000

This is how scientists write numbers so that if someone else sees the information, they will know it was written by a legitimate scientist.

Because most people are too lazy to write more than 3 zeros after a number.

Scientific notation is used to express values that are either extremely large, like the distance across a galaxy, or extrememly small, like the diameter of a cell.

Because most people will lose count and write too many or not enough zeros when there are lots of zeros on a number. If this happens it causes the data will be wrong and things get lost in space.

42,000

420,000

0.00042

0.000042

190

0.000019

190,000

19,000