TEKS.MATH.8.2C

Write the answer in scientific notation.
5 x 10⁸ -   3.4 x 10⁸  =

• 2.4 x 10⁸
• 2.4 x 10⁰
• 1.6 x 10⁰
• 1.6 x 10⁸

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TEKS.MATH.8.2C

Which of the following is correct scientific notation?

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

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TEKS.MATH.8.2C

10⁵ x  10⁷

• 10²
• 10³
• 10¹²
• 10¹³

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TEKS.MATH.8.2C

Write 1.09 x 10^-4 in standard notation.

• 1,090

• 10,900

• 0.000109

• 0.0109

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TEKS.MATH.8.2C

(3.8×10⁷)×162

• 6.156×10⁹
• 6.156×10⁸
• 615×10⁷
• 615×10⁸

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TEKS.MATH.8.2C

Which is the smallest?
1.3 x 10²⁰
2.9 x 10²¹
9.5 x 10³²
8.4 x 10¹⁹

• 1.3 x 10²⁰
• 2.9 x 10²¹
• 9.5 x 10³²
• 8.4 x 10¹⁹

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TEKS.MATH.8.2C

When you move the decimal to the right in scientific notation, it __________ the exponent.

• increases

• decreases

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TEKS.MATH.8.2C

 $\frac{1.05\times10^{12}}{5\times10^4}$  

•  $0.21\times10^3$  

•  $2.1\times10^7$  

•  $0.21\times10^8$  

•  $2.1\times10^9$  

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TEKS.MATH.8.2C

Multiply:

(3.4 x 10⁵)(1.2 x 10^-3)

• 4.08 x 10^-8

• 4.6 x 10²

• 4.08 x 10²

• 4.08 x 10^-15

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TEKS.MATH.8.2C

Which are greater than 5.31 x 10⁴

• 129,453

• 74,234

• 53,074

• 1.1 x 10⁵

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TEKS.MATH.8.2C