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Vocabulary
Scientific Notation (2.1)
Exponents & Multiplication (2.2-2.3
Exponents & Division (2.4-2.5)
Word Problems
100
A short way to write very large numbers
What is scientific notation?
100
Write in standard from 7 1.55 X 10
What is 15,500,000?
100
Write using a single exponent 3 5 (-2) • (-2)
8 What is (-2) ?
100
O 4
What is 1?
100
The human eye's retina has about 130 million light-sensitive cells. Write this number in scientific notation.
8 What is 1.3 X 10 ?
200
How to divide nonzero numbers or variables withexponents that have the same non zero base
What is subtract the exponents?
200
DAILY DOUBLE Write in scientific notation: 135,300,000,00,000
14 What is 1.353 X 10 ?
200
12 6 9 • 9 • 9
19 What is 9 ?
200
DAILY DOUBLE 12 8 23 / 23
4 What is 23 ?
200
9 The Hudson River in New York is about 2 km long. The 2 Columbia river in Oregon is 2 times longer. How long is the Columbia River? Write you answer with exponents.
11 What is 2 ?
300
The meaning of a zero exponent
What is 1?
300
Write in scientific notation: 0.0000076
-6 What is 7.6 X 10 ?
300
2 3 c d • cd
3 4 What is c d ?
300
Write in scientific notation. 9 4.2 ÷ (5.5 X 10 )
-10 What is 7.6 X 10 ?
300
5 The speed of light is about 3.0 X 10 km/second. Use the formula d = r • t to find the distance light travels in an hour 3 which is 3.6 X 10 seconds.(Round to the nearest hundredth)
9 What is 1.08 X 10 km.
400
How to write a number with a negative exponent
What is a fraction?
400
Write in standard form: -4 4.802 X 10
What is 0.0004802
400
m t 5 • 5
(m + t) What is 5
400
6 6.2 X 10 ÷ 4.1
6 What is 1.5 X 10 ?
400
Earth's crust is divided into large pieces called tectonic plates. The Pacific plate is moving northwest at a rate of -2 about 4 m each year. At this rate, how long will it take -6 the plate to move 4 m (about 2.5 miles)?
8 What is 4 years, which is about 65,000 years
500
What an exponent tells you
What is "How many times to multiply the base"?
500
Which number is greater? 99 100 3.14 X 10 or 3 X 10 ?
100 What is 3 X 10 ?
500
3 6 (2 x 10 ) (4 x 10 )
9 What is 8 x 10 ?
500
Order from least to greatest -4 4 4 3 -6.5 x 10 6.2 x 10 7.5 x 10 -6.5 x 10
3 -4 4 4 What is -6.5 x 10 -6.5 x 10 6.2 x 10 7.5 x 10 ?
500
6 The sun's diameter is 1.39 X 10 km. Earth's diameter is 4 1.28 X 10 km. How many times greater is the sun's diameter than the Earth's?
2 What is 1.09 X 10 ?