# Common Core: 8th Grade Math : Use Powers of 10 to Estimate Quantities: CCSS.Math.Content.8.EE.A.3

## Example Questions

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### Example Question #1 : Use Powers Of 10 To Estimate Quantities: Ccss.Math.Content.8.Ee.A.3

Select the number that is equal to four times ten to the fifth power.

Explanation:

Four times ten to the fifth power can be written numerically as the following:

When a number between one and ten is multiplied by a power of ten it is said to be written in scientific notation. This number is currently written in scientific notation.

Even though this appears to be a challenging math problem (i.e. because we have a power of ten), we can simply move our decimal place after the four, or , over  spaces to the right using zeros as place holders.

Add commas and simplify.

### Example Question #2 : Use Powers Of 10 To Estimate Quantities: Ccss.Math.Content.8.Ee.A.3

Select the number that is equal to three times ten to the seventh power.

Explanation:

Three times ten to the seventh power can be written numerically as the following:

When a number between one and ten is multiplied by a power of ten it is said to be written in scientific notation. This number is currently written in scientific notation.

Even though this appears to be a challenging math problem (i.e. because we have a power of ten), we can simply move our decimal place after the three, or , over  spaces to the right using zeros as place holders.

Add commas and simplify.

### Example Question #3 : Use Powers Of 10 To Estimate Quantities: Ccss.Math.Content.8.Ee.A.3

Select the number that is equal to two times ten to the eighth power.

Explanation:

Two times ten to the eighth power can be written numerically as the following:

When a number between one and ten is multiplied by a power of ten it is said to be written in scientific notation. This number is currently written in scientific notation.

Even though this appears to be a challenging math problem (i.e. because we have a power of ten), we can simply move our decimal place after the two, or , over  spaces to the right using zeros as place holders.

Add commas and simplify.

### Example Question #4 : Use Powers Of 10 To Estimate Quantities: Ccss.Math.Content.8.Ee.A.3

Select the number that is equal to two times ten to the third power.

Explanation:

Two times ten to the third power can be written numerically as the following:

When a number between one and ten is multiplied by a power of ten it is said to be written in scientific notation. This number is currently written in scientific notation.

Even though this appears to be a challenging math problem (i.e. because we have a power of ten), we can simply move our decimal place after the two, or , over  spaces to the right using zeros as place holders.

Add commas and simplify.

### Example Question #5 : Use Powers Of 10 To Estimate Quantities: Ccss.Math.Content.8.Ee.A.3

Select the number that is equal to two times ten to the fourth power.

Explanation:

Two times ten to the fourth power can be written numerically as the following:

When a number between one and ten is multiplied by a power of ten it is said to be written in scientific notation. This number is currently written in scientific notation.

Even though this appears to be a challenging math problem (i.e. because we have a power of ten), we can simply move our decimal place after the two, or , over  spaces to the right using zeros as place holders.

Add commas and simplify.

### Example Question #6 : Use Powers Of 10 To Estimate Quantities: Ccss.Math.Content.8.Ee.A.3

Select the number that is equal to four times ten to the sixth power.

Explanation:

Four times ten to the fifth power can be written numerically as the following:

When a number between one and ten is multiplied by a power of ten it is said to be written in scientific notation. This number is currently written in scientific notation.

Even though this appears to be a challenging math problem (i.e. because we have a power of ten), we can simply move our decimal place after the four, or , over  spaces to the right using zeros as place holders.

Add commas and simplify.

### Example Question #7 : Use Powers Of 10 To Estimate Quantities: Ccss.Math.Content.8.Ee.A.3

Select the number that is equal to four times ten to the eighth power.

Explanation:

Four times ten to the eighth power can be written numerically as the following:

When a number between one and ten is multiplied by a power of ten it is said to be written in scientific notation. This number is currently written in scientific notation.

Even though this appears to be a challenging math problem (i.e. because we have a power of ten), we can simply move our decimal place after the four, or , over  spaces to the right using zeros as place holders.

Add commas and simplify.

### Example Question #8 : Use Powers Of 10 To Estimate Quantities: Ccss.Math.Content.8.Ee.A.3

Select the number that is equal to six times ten to the sixth power.

Explanation:

Six times ten to the sixth power can be written numerically as the following:

When a number between one and ten is multiplied by a power of ten it is said to be written in scientific notation. This number is currently written in scientific notation.

Even though this appears to be a challenging math problem (i.e. because we have a power of ten), we can simply move our decimal place after the six, or , over  spaces to the right using zeros as place holders.

Add commas and simplify.

### Example Question #9 : Use Powers Of 10 To Estimate Quantities: Ccss.Math.Content.8.Ee.A.3

Select the number that is equal to five times ten to the seventh power.

Explanation:

Five times ten to the seventh power can be written numerically as the following:

When a number between one and ten is multiplied by a power of ten it is said to be written in scientific notation. This number is currently written in scientific notation.

Even though this appears to be a challenging math problem (i.e. because we have a power of ten), we can simply move our decimal place after the five, or , over  spaces to the right using zeros as place holders.

Add commas and simplify.

### Example Question #10 : Use Powers Of 10 To Estimate Quantities: Ccss.Math.Content.8.Ee.A.3

Select the number that is equal to nine times ten to the third power.

Explanation:

Nine times ten to the third power can be written numerically as the following:

When a number between one and ten is multiplied by a power of ten it is said to be written in scientific notation. This number is currently written in scientific notation.

Even though this appears to be a challenging math problem (i.e. because we have a power of ten), we can simply move our decimal place after the nine, or , over  spaces to the right using zeros as place holders.

Add commas and simplify.

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