Round the value 12,984.3432 to the nearest thousandth.

To round 12,984.3432 to the nearest thousandth, look at the digit in the fourth decimal place, which is 2. Since it’s less than 5, you’ll keep the third decimal place (3) the same. Thus, 12,984.3432 rounded to the nearest thousandth is 12,984.343.

Now, let’s imagine you’re baking cookies and need to be precise with your measurements. If you’re measuring flour (or any ingredient) and say you have 12,984.3432 grams, rounding to the nearest thousandth ensures that your cookie dough is just the right texture to achieve that perfect bake. Careful measurements = happy cookies!