# Practice Page

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### 102-D: Significant Figures 2: Rounding to a specific number of significant figures

• Topic Cluster: Science Practice
• Topic: Error Approximation and Significant Figures
• Objective: Given a value in standard or scientific notation, round to a certain number of significant figures.
• Content:
• Level: 1

#### BACK to Ladder Error Approximation and Significant Figures

In the previous pod, we counted the significant figures. In this pod, we will round to a specified number of significant figures.

For each of the values above, round the number to 2 significant digits.

1. 1.0000000000
2. 3.333333333
3. 4.87123
4. 2 divided by 9
5. $$\pi$$

For each of the values below, first convert the number into scientific notation, and then round it to three significant figures.

1. 141231
2. 12412090184
3. 809707042
4. 0.00000141240918
5. 0.0001241241

### Video Resources

##### Flipping Physics Video

Note: same video as in the previous pod, but starting at the location relevant to this pod.