Task Sets: Use numbers expressed in scientific notation to estimate very large or very small quantities - Common Core Math - Grade 8

1.

Which is the correct scientific notation for 7,300,000,000?

A.

$73 \times 10^8$

B.

$7.3 \times 10^9$

C.

$0.73 \times 10^{10}$

D.

$7.3 \times 10^{-9}$

$Reference card stating that numbers less than one use a negative exponent and numbers ten or greater use a positive exponent in scientific notation$

2.

Which is the correct scientific notation for 0.0000062?

A.

$6.2 \times 10^{-6}$

B.

$6.2 \times 10^6$

C.

$62 \times 10^{-7}$

D.

$0.62 \times 10^{-5}$

3.

Write $4.8 \times 10^5$ in standard form.

4.

Estimate 328,000,000 as a single digit times a power of 10.

5.

How many times as much is $8 \times 10^9$ than $4 \times 10^8$ ?

A.

2

B.

20

C.

$4 \times 10^{17}$

D.

$7.6 \times 10^9$

Exercises: Scientific Notation for Estimation and Comparison