Deshawn has five base-ten blocks. She models a number that is less than 999. The number she models has a zero in tens place and a zero in the ones place. What number is she modeling?

500

how could it be 500 when she only has 5 base-10 blocks. the numbers under 999 where the tens and ones are 0 are: 0, 100, 200, 300, etc. So it has to be 0 right? I am asking b/c it is confusing.

To solve this problem, we need to determine the possible values for each place value.

We know that the number is less than 999 and has a zero in both the tens place and the ones place. Let's analyze the remaining digit, which is in the hundreds place.

Since the number is less than 999, the hundreds place can take the values 1, 2, 3, 4, 5, 6, 7, or 8. It cannot be 9 because then the number would be 990 or greater.

Now, let's consider the tens place. Since the number has a zero in the tens place, it can only be zero.

Finally, let's consider the ones place. Since the number has a zero in the ones place, it can only be zero as well.

Combining all these digits, the number Deshawn is modeling is 100.