What must be the same to add or subtract numbers in scientific notation?

Mastering Addition and Subtraction in Scientific Notation

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

Amelia Wright
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Base numbers
Coefficients
Decimal places
Exponents
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the exponent if the coefficient is adjusted to a smaller value?
It increases by 1
It is halved
It decreases by 1
It remains unchanged
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you adjust a number in scientific notation to maintain proper form if the coefficient becomes too large?
Decrease the exponent
Increase the exponent
Multiply the coefficient by 2
Divide the coefficient by 2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sum of 6.5 times 10 to the negative eighth power and 3.99 times 10 to the negative eighth power?
1.049 times 10 to the negative eighth
1.049 times 10 to the negative seventh
10.49 times 10 to the negative seventh
10.49 times 10 to the negative eighth
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When subtracting numbers in scientific notation with different exponents, what should you do first?
Add the exponents
Divide the coefficients
Make the exponents the same
Subtract the coefficients
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you have to make an exponent larger to match another, what must you do to the coefficient?
Multiply it by 10
Make it smaller
Make it larger
Leave it unchanged
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of subtracting 2.07 times 10 to the third power from 7 times 10 to the fourth power after adjusting for scientific notation?
6.793 times 10 to the third
4.93 times 10 to the fourth
5.93 times 10 to the third
6.793 times 10 to the fourth
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