Scientific Notation Conversion Practice

The video tutorial explains how to convert numbers into correct scientific notation. It begins by identifying numbers not in proper scientific notation, such as 23 * 10^5, and demonstrates how to adjust them by moving the decimal point to ensure only one digit is in front. The tutorial highlights the inverse relationship between the decimal movement and the exponent adjustment. Several examples, including 0.8 * 10^4, 74 * 10^8, 0.28 * 10^12, and 321 * 10^5, are used to illustrate the process of converting numbers to correct scientific notation.

What is the correct scientific notation for 23 * 10^5?

• 2.3 * 10^5

• 0.23 * 10^7

• 23 * 10^5

• 2.3 * 10^6

How does the exponent change when the decimal is moved to convert 0.8 * 10^4 into scientific notation?

• Exponent increases by 1

• Exponent decreases by 1

• Exponent remains the same

• Exponent increases by 2

What is the correct scientific notation for 0.8 * 10^4?

• 0.8 * 10^4

• 8 * 10^3

• 0.08 * 10^5

• 8 * 10^4

When converting 74 * 10^8 to scientific notation, what is the new exponent?

• 10^10

• 10^9

• 10^8

• 10^7

What is the correct scientific notation for 74 * 10^8?

• 0.74 * 10^10

• 74 * 10^9

• 7.4 * 10^9

• 7.4 * 10^8

How does the exponent change when converting 0.28 * 10^12 to scientific notation?

• Exponent decreases by 1

• Exponent increases by 1

• Exponent increases by 2

• Exponent remains the same

What is the correct scientific notation for 0.28 * 10^12?

• 2.8 * 10^11

• 28 * 10^11

• 2.8 * 10^12

• 0.28 * 10^12

What is the correct scientific notation for 321 * 10^5?

• 32.1 * 10^6

• 321 * 10^6

• 3.21 * 10^7

• 3.21 * 10^5

How many decimal places do you move to convert 321 * 10^5 to scientific notation?

• One place

• Two places

• Three places

• Four places

What happens to the exponent when the decimal is moved two places to convert 321 * 10^5?

• Exponent increases by 1

• Exponent decreases by 1

• Exponent increases by 2

• Exponent decreases by 2