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The video tutorial introduces key concepts and provides an overview of the main ideas discussed.

What does the term 'at least' imply in a mathematical context?

• A maximum value or less

• An exact value

• A range of values

• A minimum value or more

In which scenario would you use 'at least'?

• When specifying an exact number

• When defining a range

• When indicating a minimum requirement

• When describing a maximum limit

How does 'at least' differ from 'at most'?

• 'At least' is used for maximum values, 'at most' for minimum values

• 'At least' is used for exact values, 'at most' for ranges

• Both terms mean the same

• 'At least' refers to a minimum, while 'at most' refers to a maximum

Which of the following is an example of using 'at least'?

• The speed limit is at most 60 mph

• The temperature should be exactly 20 degrees

• You need at least 50% to pass the exam

• You must be at most 18 years old to enter

What is a common mistake when using 'at least'?

• Using it to describe a range

• Using it to describe a maximum value

• Using it to describe a minimum value

• Using it to describe an exact value