How to convert decimals to scientific notation

Practice Questions

PSAT Math › How to convert decimals to scientific notation

Questions

9

1

can be represented by which of the following notations?

2

Define an operation $\bigstar$ as follows:

For all real numbers ,

$a\bigstar b= a + b^{2}$

Which of the following is equal to $0.0004\bigstar 0.003$ ?

3

Express 770,000,000,000 in scientific notation.

4

Convert into scientific notation.

5

Define an operation $\bigstar$ as follows:

For all real numbers ,

$a\bigstar b=a - b + 0.00000001$

Which of the following is equal to $0.00005 \bigstar 0.0000006$ ?

6

Define an operation $\bigstar$ as follows:

For all real numbers ,

$a\bigstar b= a + 0.2b$

Which of the following is equal to $0.004 \bigstar 0.03$ ?

7

12 grams of oxygen are equal to $6.022 \times 10^{23}$ atoms. Which of the following comes closest to the mass, in grams, of one million atoms of oxygen?

8

Represent $\small 0.000003452$ in scientific notation.

9

Convert 0.0004640 into scientific notation.

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