Lesson 21 S2: Use Powers of 10 to Estimate Quantities

Lesson 21 Session 2

Use Powers of 10 to Estimate Quantites​

Some text here about the topic of discussion

​Estimating Very Large Quantities:

​We can use powers of 10 to estimate properties

We do this so we can write them in a format that is easier to compare

Take the estimated population of China for example: 1,402,941,487

Multiple Choice

Estimate 2,300,125 using a power of 10.

• 2 X 10³

• 2.3 X 10⁶

• 125 X 10⁶

• 0.2 X 10⁷

Multiple Choice

Estimate 5,102,444,555 using a power of 10.

• 5 X 10¹⁰

• 5 X 10⁴

• 5.1 X 10⁹

• 5.102 X 10¹⁰

Multiple Choice

Estimate 0.00000000125 using a power of 10.

• 1.25 X 10⁹

• 1.25 X 10^-9

• 125 X 10^-11

• 125 X 10¹¹

Multiple Choice

Estimate 0.0002 using a power of 10.

• 2 X 10⁴

• 20 X 10⁵

• 2 X 10^-4

• 20 X 10^-5

Open Ended

Conclusion: Write two complete sentences about what you learned.