
Adding and Subtracting in Scientific Notation Explained

Interactive Video
•
Mathematics
•
6th - 10th Grade
•
Hard
Standards-aligned

Liam Anderson
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step when adding or subtracting numbers in scientific notation?
Multiply the coefficients
Add the exponents
Subtract the exponents
Add or subtract the coefficients
Tags
CCSS.8.EE.A.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why must the exponents be equal when adding or subtracting in scientific notation?
To make the calculation easier
To ensure the powers of 10 are the same
To simplify the coefficients
To avoid decimal points
Tags
CCSS.8.EE.A.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the first problem, what is the result of 9 times 10^9 minus 2 times 10^9?
11 times 10^9
7 times 10^9
6 times 10^9
5 times 10^9
Tags
CCSS.8.EE.A.4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sum of 3.6 times 10^7 and 2.1 times 10^7?
5.7 times 10^7
5.7 times 10^6
6.7 times 10^7
4.7 times 10^7
Tags
CCSS.8.EE.A.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the second problem, why don't we need to change the exponents?
Because the powers of 10 are different
Because the exponents are already equal
Because the coefficients are already equal
Because the coefficients are different
Tags
CCSS.8.EE.A.4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step when dealing with unequal exponents in scientific notation?
Add the coefficients
Subtract the coefficients
Multiply the exponents
Equalize the exponents
Tags
CCSS.8.EE.A.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you change an exponent from 4 to 5 in scientific notation?
Move the decimal to the left and add one to the exponent
Move the decimal to the right and subtract one from the exponent
Move the decimal to the right and add one to the exponent
Move the decimal to the left and subtract one from the exponent
Tags
CCSS.8.EE.A.3
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