How to round
Decimal
Places
Step 1. Choose a number
First, choose a number for example 543.750
Step 2. Round to the nearest whole number
To round to the nearest whole number, you will need the tenths if you look at the number 543.750 the tenth is the 7. If the digit you are looking at is 5 and above it goes ↑ if it’s 4 and under, it goes ↓ so the 3 becomes a 4 so you have 544
Step 3. Round to the nearest tenth
Now to round to the nearest tenth you look at the number behind the tenth so you will be looking at 5, it’s above 5 so the 7 turns into an 8. Now that your number is 543.8
Step 4. Round to the nearest hundred
To round to the nearest hundred its similar to tenths, you look at the number behind it, in this case 0 so it doesn’t go up at all so your number is 543.75.
My original number had 3 decimal places. The answer I got for the 3rd step was 909.6. Can you tell me what my original number might have been? How many different possibilities are there?