Problem number one, Lisa has four wooden digits. She can use them to form the number 2025. Which of the following numbers is the largest she can form with these digits? We can think about Lisa placing these digits into the following template, where we have to put one digit in the thousands place, one in the hundreds place, one in the tens place, and one in the ones place. Note that, since we want to form the largest number, it's best to put the largest digit in the highest place value, since that value impacts the value of the number more. For example, the thousands place is the largest, so she should put the digit 5 in there. Next, the hundreds place is the second largest, so we should put the second largest digit there, which is a 2. Then the tens place, but we should put the 2 there, since that's the largest digit remaining. And finally, the ones place should have the zero. This is the largest number that we can form, so the answer is C, 5,220.

largest number

wooden digits

place value

2025

number formation