Grade 8 Expression and Equation A #3

Grade 8

Expression and Equations A

#3

By Dawn Warner

I CAN

Perform operations with numbers expressions in scientific notation​

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​TARGET

​Working with radials and integer exponents

CUBE IT​

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Problem of Today

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Poll

Ms. Waites wrote the following values for powers of 10.
10² = 100
10³ = 1,000
10⁴ = 10,000
10⁵ = 100,000
Based on the pattern, which is equivalent to 100,000,000?

• 10²
• 10⁶
• 10⁷
• 10⁸

Multiple Choice

Ms. Waites wrote the following values for powers of 10.
10² = 100
10³ = 1,000
10⁴ = 10,000
10⁵ = 100,000
Based on the pattern, which is equivalent to 100,000,000?

• 10²
• 10⁶
• 10⁷
• 10⁸

Poll

10⁶ =

• 10 x 10 x 10
• 10 x 10 x 10 x 10
• 10 x 10 x 10 x 10 x 10 x 10
• 10 x 10 x 10 x 10 x 10 x 10 x 10

Multiple Choice

10⁶ =

• 10 x 10 x 10
• 10 x 10 x 10 x 10
• 10 x 10 x 10 x 10 x 10 x 10
• 10 x 10 x 10 x 10 x 10 x 10 x 10

Poll

Which of the following numbers is written in scientific notation?

• 20.35 x 10⁴

• .2035 x 10⁴

• 2035 ⁴

• 2.035 x10⁴

Multiple Choice

Which of the following numbers is written in scientific notation?

• 20.35 x 10⁴

• .2035 x 10⁴

• 2035 ⁴

• 2.035 x10⁴

Multiple Choice

What is scientific notation?

• A long way to write really short  numbers
• A short way to write really long numbers
• I don't know...
• None of the above

Multiple Choice

UNDERSTANDING
If the exponent is a positive number...

• you will get a large number
• you will get a smaller number

Multiple Choice

UNDERSTANDING
If the exponent is a negative number...

• you will get a large number
• you will get a small number

Poll

Which number is the highest value?

• 2.35 x 10⁵

• 9.78 x 10³

• 5.01 x 10⁴

• 1.101 x 10⁶

Multiple Choice

Which number is the highest value?

• 2.35 x 10⁵

• 9.78 x 10³

• 5.01 x 10⁴

• 1.101 x 10⁶

Poll

Which value is the greatest?

• 5.0 x 10^-9

• 5.0 x 10^-4

• 5.0 x 10⁶

• 5.0 x 10⁸

Multiple Choice

Which value is the greatest?

• 5.0 x 10^-9

• 5.0 x 10^-4

• 5.0 x 10⁶

• 5.0 x 10⁸

Poll

Which number is the least in value?

• 5.0 x 10^-9

• 5.0 x 10^-4

• 5.0 x 10⁶

• 5.0 x 10⁸

Multiple Choice

Which number is the least in value?

• 5.0 x 10^-9

• 5.0 x 10^-4

• 5.0 x 10⁶

• 5.0 x 10⁸

Poll

Which number has the lowest value

• 8.11 x 10²

• 7.22 x 10⁹

• 6.33 x 10⁵

• 5.44 x 10²

Multiple Select

Which number has the lowest value

• 8.11 x 10²

• 7.22 x 10⁹

• 6.33 x 10⁵

• 5.44 x 10²

Poll

Change from standard form to scientific notation:  

450,000

• 4.5  x  10⁵
• 45  x  10⁵
• 4.5  x  10⁴
• 4.5  x  10⁶

Multiple Choice

Change from standard form to scientific notation:  450,000

• 4.5  x  10⁵
• 45  x  10⁵
• 4.5  x  10⁴
• 4.5  x  10⁶

Poll

Change from standard form to scientific notation:  0.000398

• 39.8  x  10^-5
• 3.98  x  10^-5
• 3.98  x  10^-4
• 39.8  x  10^-6

Multiple Choice

Change from standard form to scientific notation:  0.000398

• 39.8  x  10^-5
• 3.98  x  10^-5
• 3.98  x  10^-4
• 39.8  x  10^-6

Poll

Try to change the number back to standard form:  

6.79  x  10⁴

• 679,000
• 6,790
• 67,900
• 6,790,000

Multiple Choice

Try to change the number back to standard form:  6.79  x  10⁴

• 679,000
• 6,790
• 67,900
• 6,790,000

Poll

Try to change the number back to standard form: 3.97  x  10^-2

• 0.000397
• 0.0397
• 0.0000397
• 0.397

Multiple Choice

Try to change the number back to standard form: 3.97  x  10^-2

• 0.000397
• 0.0397
• 0.0000397
• 0.397

Great Job Eagles!!

​If you have time,

here's more scientific notation practice.

Poll

Write 7.113 x 10⁷ in standard form.

• 71,130,000
• 7,113,000
• 0.0000007113
• 7,113

Multiple Choice

Write 7.113 x 10⁷ in standard form.

• 71,130,000
• 7,113,000
• 0.0000007113
• 7,113

Poll

Write 0.000972 in scientific notation.

• 9.72 x 10^-4
• 9.72 x 10^-3
• 972 x 10^-4
• 9.72 x 10⁴

Multiple Choice

Write 0.000972 in scientific notation.

• 9.72 x 10^-4
• 9.72 x 10^-3
• 972 x 10^-4
• 9.72 x 10⁴

Poll

The rule of scientific notation is to write all exponents with a base of ____.

• 50
• 5
• 100
• 10

Multiple Choice

The rule of scientific notation is to write all exponents with a base of ____.

• 50
• 5
• 100
• 10

Poll

How do you write
8.317 x 10⁶
in standard form?

• 8, 371, 000
• 83, 170, 000
• 837, 100
• 8, 317, 000

Multiple Choice

How do you write
8.317 x 10⁶
in standard form?

• 8, 371, 000
• 83, 170, 000
• 837, 100
• 8, 317, 000

Poll

How many zeros would be in this number if written in standard form?
6.47 x 10¹¹

• 11
• 9
• 10
• 12

Multiple Choice

How many zeros would be in this number if written in standard form?
6.47 x 10¹¹

• 11
• 9
• 10
• 12

Poll

Write 0.00000707 in scientific notation.

• 7.07 x 10^-6
• 7.07 x 10⁶
• 707 x 10⁸
• 707 x 10^-8

Multiple Choice

Write 0.00000707 in scientific notation.

• 7.07 x 10^-6
• 7.07 x 10⁶
• 707 x 10⁸
• 707 x 10^-8

Poll

How do you write
1001
in scientific notation?

• 1.0001 x 10⁴
• 1.01 x 10⁵
• 1.001 x 10³
• 10.1 x 10³

Multiple Choice

How do you write
1001
in scientific notation?

• 1.0001 x 10⁴
• 1.01 x 10⁵
• 1.001 x 10³
• 10.1 x 10³

Poll

Which of the following is correct scientific notation?

• 20.35 x 10⁴
• .2035 x 10⁴
• 2035 ⁴
• 2.035 x10⁴

Multiple Choice

Which of the following is correct scientific notation?

• 20.35 x 10⁴
• .2035 x 10⁴
• 2035 ⁴
• 2.035 x10⁴

Poll

Write in scientific notation:
25,200,000

• 2.52 x 10⁶
• 2.52 x 10⁷
• .252 x 10⁸
• 2.52 x 10⁸

Multiple Choice

Write in scientific notation:
25,200,000

• 2.52 x 10⁶
• 2.52 x 10⁷
• .252 x 10⁸
• 2.52 x 10⁸

Poll

Write in standard form:
1.9 x 10⁵

• 19,000
• 190,000
• 1,190,000
• 1,900

Poll

Write in standard form:
2 x 10⁷

• 2,000,000
• 200,000
• 20,000
• 20,000,000

Multiple Choice

Write in standard form:
2 x 10⁷

• 2,000,000
• 200,000
• 20,000
• 20,000,000