Which part of the scientific notation indicates the direction of the movement of the decimal point?
a. Sign of exponent
b. Sign of coefficient
c. Position of decimal point
d. Power of 10

In the scientific notation , which is the coefficient?
a.3
b.5
c.x
d.10

Which statement is not a step in writing a number to scientific notation?

a.Move the decimal point to the left until you have a number greater than or equal to 1 and less than 10.

b.Multiply the decimal (in step a) by the power of 10 (in step b).

c.Count the number of decimal places as you move the decimal point to the left and use that number as the positive power of 10.

d.To change scientific notation with a positive integer exponent to standard form, move the decimal point to the right, the number of places indicated by the exponent.

Justin can type 40 words per minute, how many words can Justin type in 10 minutes?

a.500 words

b.400 words

c.300 words

d.100 words

Which is the scientific notation of 0.000789?
a.
b.
c.
d.

Which is the standard form of the scientific notation ?
a.0.00043

b.0.0043

c.0.000043

d.0.043

An elevator is on the first floor. It goes up 8 floors, then 5 down, and the 4 up. On what floor is the elevator now?
a.8th floor

b.9th floor

c.6th floor

d.7th floor



Which is the standard form of the scientific notation ?
a.0.0043

b.43,000

c.430,000

d.0.00043

In the scientific notation , which shows the number of times the decimal place is moved?
a.10

b.–3

c.1.2

d.0.23

Which among the following is the best reason why scientific notation is important?
a.Because it simplifies big and small numbers

b.Because it makes use of the powers of 10

c.Because it helps in mathematical computations

d.Because it makes real numbers mathematical





​