Grade 7 Algebra: Standard Form

Grade 7 Algebra: Standard Form

Read each question carefully and follow the instructions to convert numbers to and from standard form (scientific notation).

Convert the following numbers to standard form (scientific notation).

1. 3,400,000 =  

2. 0.0000078 =  

3. 56,700 =  

4. 0.000105 =  

Convert the following numbers from standard form to ordinary numbers.

1. 6.2 x 10^5 =  

2. 1.9 x 10^-3 =  

3. 9.01 x 10^7 =  

4. 4.5 x 10^-6 =  

1. Which of the following is the correct standard form for 82,000?

2. What is 3.0 x 10^-2 as an ordinary number?

1. The distance from Earth to the Sun is approximately 150,000,000 kilometers. Write this distance in standard form.

2. A red blood cell has a diameter of about 7.5 x 10^-6 meters. Write this diameter as an ordinary number.

Indicate whether each statement is True or False.

1. The number 0.000045 is 4.5 x 10^5 in standard form.

2. 9.9 x 10^0 is equal to 9.9.