Adding and Subtraction in Scientific Notation
Mathematics
8th Grade
CCSS covered
Used 244+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
On Tom's calculator, a number that can't be displayed in 10 or fewer digits is presented in scientific notation. Tom enters a multiplication problem and the answer displayed on his calculator is 7 x 1011. What is the number in standard notation?
700,000,000
70,000,000,000
700,000,000,000
7,000,000,000,000
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The fairy fly is one of the world's smallest insects. It may measure no more than 1.39 x -4 meters in length. What is the total length of 2 of these insects, placed end to end?
2.78 x 10-8
2.78 x 10-4
1.39 x 10-8
1.39 x 10-2
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
The approximate volumes of water in Lake Michigan and Lake Erie are 1.7 x 1014 ft3 and 1.7 x 1013 ft3. Which statements are true? Choose all that are correct.
Doubling the volume of water in Lake Michigan would yield 3.4 x 1014 ft3.
A body of water with 1,000 times more water than Lake Erie would have a water volume of 1.7 x 1016 ft3.
Doubling the volume of water in Lake Michigan would yield 3.4 x 1026 ft3.
Lake Michigan has 10.0 times more water than Lake Erie.
Lake Michigan has 1.7 times more water than Lake Erie.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A country in Europe has a population of 4.5 x 106 people. A neighboring country has a population of 2.6 x 107 people. What is the total population of the two countries?
3.05 x 107
7.1 x 107
7.1 x 1013
3.05 x 1014
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Erin is studying the area and population of diffferent states. What is the difference in total area of Alaska and Connecticut? Express your answer in scientific notation.
1.4 x 104
17.01 x 104
1.701 x 106
1.4 x 107
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Find the sum (5.5 x 105) + (2.5 x 105).
Tags
CCSS.8.EE.A.4
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(7.9 X 102) - (2.3 X 102)=
Tags
CCSS.8.EE.A.4
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