Convert 3 Tens and 3 Units: Integer Representation Practice

To solve this problem, we must understand the structure of numbers in the decimal system, specifically how tens and units contribute to the value of a number.

We start by calculating the value of 3 tens. In the decimal system, one ten is equivalent to 10 units, so 3 tens would be:

$3 \times 10 = 30$

Next, we calculate the total value of 3 units. In this system, one unit is simply worth its face value, so:

$3 \times 1 = 3$

To find the integer formed by 3 tens and 3 units, we add the two values together:

$30 + 3 = 33$

Thus, the integer formed by 3 tens and 3 units is $33$.