Exponents
Write 4x4x4x4x4x4x4 in exponential form.
47
(22)3
26 = 64
Is the following expression written in scientific notation? If not, explain why.
3.25 + 10-7
No, it should be multiplied, not added.
Solve the expression. Write your answer in scientific notation. 3.7 x 109 + 9.04 x 109
12.74 x 109 = 1.274 x 1010
Perpendicular lines cross at ______________ angles.
Right
Write 35 in expanded form.
3x3x3x3x3
(4y)3
64y3
The mass of Jupiter is approximately 1,900,000,000,000,000,000,000,000,000 kg. Write the mass of Jupiter in scientific notation.
1.9 x 1027kg
Solve the expression. Write your answer in scientific notation.
8.45 x 10-7 - 6.9 x 10-7
1.55 x 10-7
What is the difference between 298,775 and 189,882?
108,893
(-3)3
-27
y5 x y9
y14
The mass of a Monarch butterfly egg is about
9.5 x 10-4kg. Write this number in standard form.
0.00095kg
The surface of the Earth is water and land. The approximate total surface area of Earth is 5.1 x 108 km2 and the approximate total surface area of water is 361,000,000 km2. About how much of Earth's surface area is land?
1.49 x 108
Mr Larsen caught four fish. Their weights were: 450g, 1.2kg, 350g and 700g.
What is the total weight of his fish in kg?
2.7kg
(149)0
1
36x4y3
6xy2
6x3y
The size of the Sahara desert is about 3.629 x 106 square miles and the Arabian desert is about 9 x 105 square miles. Which desert is larger? Explain how you know.
Sahara, because the exponent is bigger.
Humpback whales are known to weigh as much as
3.6 x 104kg. The krill they eat weigh only 1 x 10-3 kg.
Approximately how many times greater than krill are humpback whales?
3.6 x 107
12.13 - 9.434
2.696
9-2
1/81
(5x2)3
(7y9)0
125x6
The size of the four oceans, in square km, is shown below. List the oceans from smallest to largest.
Pacific Ocean: 1.7965 x 108
Arctic Ocean: 1.323 x 107
Atlantic Ocean: 1.061 x 108
Indian Ocean: 7.49 x 107
Arctic, Indian, Atlantic, Pacific
A computer can perform 4.66 x 108 instructions per second.
How many instructions can it perform per minute?
Give your answer in scientific notation.
Per minute = 2.796 x 1010
What percentage of Ms Larsen's kids are boys?
50%