2.2:10=
To solve this problem, let's follow these steps:
Now, let's work through each step:
Step 1: The problem gives us the number and requires dividing it by .
Step 2: When dividing a number by , you move the decimal point one place to the left. This is a result of how the base-10 system works; dividing by a power of 10 shifts the decimal point left.
Step 3: In the number , the decimal is currently after the numeral "2." Moving the decimal one place left, we have:
Therefore, the result of is .
To ensure accuracy, we compare this result with the provided choices. Choice number 3, , matches our solution.
Thus, the solution to the problem is .