Answer :

To find the difference between [tex]$5.66 and $[/tex]3.97, we simply subtract the second number from the first:

1. Start with the number 5.66.
2. Subtract 3.97 from 5.66.

Let’s do this step-by-step:

- First, subtract the whole numbers: 5 - 3 = 2.
- Next, handle the decimal places: 0.66 - 0.97.

Since 0.66 is less than 0.97, we need to borrow 1 from the whole number (making the 2 into a 1) and convert it to 1.66.

Now, subtract the decimals:

1.66 - 0.97 = 0.69

Now put the whole number and decimal together:

1 + 0.69 = 1.69

So, the difference is 1.69.

Therefore, the correct answer is B. 1.69.