Answer:Step-by-step explanation:o identify the highest place value and the corresponding digit in a given number, follow these steps:Identify the leftmost digit: This digit is in the highest place value.Determine the place value: The position of this digit from the right determines its place value.Let’s look at an example:For the number 789,456:The leftmost digit is 7.The place value of 7 is hundred thousands.So, the highest place value is hundred thousands, and the corresponding digit is 7.