Then/Now You have already compared and ordered integers. (Lesson 2–1) Express numbers in standard...
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![Page 1: Then/Now You have already compared and ordered integers. (Lesson 2–1) Express numbers in standard form and in scientific notation. Compare and order numbers.](https://reader035.fdocuments.net/reader035/viewer/2022062805/5697c01d1a28abf838cd074e/html5/thumbnails/1.jpg)
You have already compared and ordered integers. (Lesson 2–1)
• Express numbers in standard form and in scientific notation.
• Compare and order numbers written in scientific notation.
![Page 3: Then/Now You have already compared and ordered integers. (Lesson 2–1) Express numbers in standard form and in scientific notation. Compare and order numbers.](https://reader035.fdocuments.net/reader035/viewer/2022062805/5697c01d1a28abf838cd074e/html5/thumbnails/3.jpg)
Express Numbers in Standard Form
A. Express 3 × 105 in standard form.
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Express Numbers in Standard Form
B. Express 4.395 × 104 in standard form.
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Express Numbers in Standard Form
C. Express 6.79 × 10–6 in standard form.
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A. A
B. B
C. C
D. D
A. Express 5 × 104 in standard form.
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A. A
B. B
C. C
D. D
B. Express 2.614 × 106 in standard form.
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A. A
B. B
C. C
D. D
C. Express 8.03 × 10–4 in standard form.
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Express Numbers in Scientific Notation
A. Express 800,000 in scientific notation.
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Express Numbers in Scientific Notation
B. Express 64,000 in scientific notation.
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Express Numbers in Scientific Notation
C. Express 0.0119 in scientific notation.
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A. A
B. B
C. C
D. D
A. Express 65,000 in scientific notation.
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A. A
B. B
C. C
D. D
B. Express 95,000,000 in scientific notation.
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A. A
B. B
C. C
D. D
C. Express 0.00042 in scientific notation.
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Solve Problems Using Scientific Notation
DIMES A dime is 1.35 × 10–3 meters thick. What would the height of a stack of one million dimes be in scientific notation?
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A. A
B. B
C. C
D. D
A quarter is 1.75 × 10–3 meters thick. What would be the height of a stack of one billion quarters in scientific notation?
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Order Numbers in Scientific Notation
SPACE The diameters of Neptune, Saturn, and Uranus are 4.9 × 104 km, 1.2 × 105 km, and 5.1 × 104 km, respectively. Order the planets from greatest to least diameter.
Step 1 Order the numbers according to their exponents.
Saturn has the greatest exponent so it is the largest.
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Order Numbers in Scientific Notation
5.1 > 4.9
Uranus Neptune
5.1 × 104 > 4.9 × 104
Answer: So, the order is Saturn, Uranus, and Neptune.
Step 2 Order the numbers with the same exponent by comparing the factors.
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A. A
B. B
C. C
D. D
The diameters of Earth, Jupiter, and Mercury are 1.55 × 108 km, 7.79 × 108 km, and 5.80 × 107 km, respectively. Order the diameters from smallest to largest diameter.