The number of blocks has 9 in the ones place. The number in the hundreds place is one more than the number in the tens place. Those two numbers equal 11.how many blocks are there?

the number should look like this

(x+1)x9

"Those two numbers equal 11"
Did you mean that their sum is 11?
I will assume thus.

x+1 + x = 11
x = 5

your number is 659

To solve this problem, let's work through it step by step.

Let's call the number in the tens place 'x'.
According to the problem, the number in the hundreds place is one more than the number in the tens place. So, the number in the hundreds place would be (x + 1).

Now, we know that the digit in the ones place is 9. So, we can write the entire number as (x + 1) x 10 + 9.

The problem also states that the two numbers together equal 11. So, we can set up an equation as follows:
(x + 1) x 10 + 9 + x = 11

To solve the equation, we can simplify it:
10x + 10 + 9 + x = 11
11x + 19 = 11
11x = 11 - 19
11x = -8
x = -8 / 11
x = -0.7272 (rounded to four decimal places)

Since we are dealing with blocks, it doesn't make sense to have a negative or decimal number of blocks. Therefore, based on the information provided, it appears that there is no possible solution for this problem.