Zero and Negative Exponents - Vaccarella
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Easy
Candace Vaccarella
Used 5+ times
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a base is raised to the power of zero, such as 50, the overall value of the expression is always...
-1
0
1
The value of the base
Answer explanation
When a number is raised to the power of zero, the value of the expression is 1.
Think of it as meaning we are multiplying by that base zero times, leaving us with the "invisible" 1.
Example:
(multiplied by zero 5's)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Below is an expression with a negative exponent. Select the equivalent expression that has a positive exponent, instead.
Answer explanation
To rewrite an exponent expression with a positive exponent, you must write the reciprocal of the term (switch to/from numerator and denominator) and change the sign of the exponent.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Below is an expression with a negative exponent. Select the equivalent expression that has a positive exponent, instead.
Answer explanation
To rewrite an exponent expression with a positive exponent, you must write the reciprocal of the term and change the sign of the exponent.
When there is a coefficient, the coefficient remains where it was! Only the power portion of the term is affected.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Below is an expression with zero and negative exponents. Select the simplified equivalent expression:
Answer explanation
ORDER OF OPERATIONS: Exponents, then multiplication
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Any base to the 0 power is equal to....
0
the base
1
x
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Simplify x-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Make this negative exponent positive.
9-3
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