How to write a number less than zero in scientific notation

The video tutorial explains how to move decimal points in numbers, focusing on understanding the concept of decimal movement and how to calculate the new position of a decimal point. It also covers the importance of recognizing when the movement is negative, emphasizing careful attention to positive and negative shifts.

What is the purpose of moving the decimal point in a number?

• To make the number larger

• To simplify counting and identify a target range

• To make the number smaller

• To change the number's value

How do you determine the power of 10 needed in scientific notation?

• By adding the digits of the number

• By counting how many times the decimal point is moved

• By counting the total digits in the number

• By dividing the number by 10

What does a negative exponent indicate in scientific notation?

• The decimal point was moved to the right

• The number is negative

• The number is positive

• The decimal point was moved to the left

Why is it important to be careful with the sign of the exponent?

• It has no effect on the number

• It affects the size of the number

• It changes the number's value

• It determines the number's positivity

What is the result of moving the decimal point 11 places to the left?

• A positive exponent of 11

• A positive exponent of 10

• A negative exponent of 10

• A negative exponent of 11