How do you know if a power of a negative number is positive or negative?

Look at the exponent. A negative base with an even exponent gives a positive value, and a negative base with an odd exponent gives a negative value. Powers of Negative Stacked Fractions has students write the sign before the fraction.

How do you raise a fraction to a power?

Raise the numerator and the denominator to the same exponent, then write the result in simplest form. For example, one half cubed is one eighth. Powers of Stacked Fractions to the Second and Third gives practice with this.

Can I compare powers without calculating them?

Yes. Students can often compare by looking at the base, the exponent or the sign. Compare Powers Without Full Calculation asks for a short reason first and then a calculation to check.

Do these 7th grade exponent worksheets have answer keys?

Yes. All 13 worksheets in this topic come with an answer key.

7th Grade Exponents Worksheets

Ages 12-13 · 1 sub-topic · Free previews · Print-ready PDFs

An exponent tells how many times a base is used as a factor, so 3 to the 4th power is 3 × 3 × 3 × 3 = 81. There are 13 worksheets for 7th grade here, each with an answer key. Evaluate Powers of Negative Integers, Powers of Stacked Fractions to the Second and Third and Write Products as Powers With Variables stretch exponents to negative, fraction, decimal and variable bases.

Written by Adi Ackerman, Head Teacher

7th Grade Math Exponents Clear All

Exponents▼

$Compare Powers Without Full Calculation - 7th Grade Exponents worksheet preview$

Compare Powers Without Full Calculation

Grade7th Grade

TopicExponents

$Evaluate Powers by Writing the Expanded Form - 7th Grade Exponents worksheet preview$

Evaluate Powers by Writing the Expanded Form

Grade7th Grade

TopicExponents

$Evaluate Powers in Two-Operation Expressions - 7th Grade Exponents worksheet preview$

Evaluate Powers in Two-Operation Expressions

Grade7th Grade

TopicExponents

$Evaluate Powers of Decimals to Three Places - 7th Grade Exponents worksheet preview$

Evaluate Powers of Decimals to Three Places

Grade7th Grade

TopicExponents

$Evaluate Powers of Negative Integers - 7th Grade Exponents worksheet preview$

Evaluate Powers of Negative Integers

Grade7th Grade

TopicExponents

$Evaluate Powers of Signed Decimals - 7th Grade Exponents worksheet preview$

Evaluate Powers of Signed Decimals

Grade7th Grade

TopicExponents

$Expressions With Powers of Stacked Fractions - 7th Grade Exponents worksheet preview$

Expressions With Powers of Stacked Fractions

Grade7th Grade

TopicExponents

$Name the Base and Exponent When Signs Are Tricky - 7th Grade Exponents worksheet preview$

Name the Base and Exponent When Signs Are Tricky

Grade7th Grade

TopicExponents

$Powers of Negative Stacked Fractions - 7th Grade Exponents worksheet preview$

Powers of Negative Stacked Fractions

Grade7th Grade

TopicExponents

$Powers of Stacked Fractions to the Second and Third - 7th Grade Exponents worksheet preview$

Powers of Stacked Fractions to the Second and Third

Grade7th Grade

TopicExponents

$Write Products as Powers With Negative Bases - 7th Grade Exponents worksheet preview$

Write Products as Powers With Negative Bases

Grade7th Grade

TopicExponents

$Write Products as Powers With Variables - 7th Grade Exponents worksheet preview$

Write Products as Powers With Variables

Grade7th Grade

TopicExponents

$Write Rational Products as Powers - 7th Grade Exponents worksheet preview$

Write Rational Products as Powers

Grade7th Grade

TopicExponents

Frequently Asked Questions

With parentheses, the negative sign is part of the base, so (−3) squared is (−3) × (−3) = 9. Without parentheses, the base is 3 and the negative sign comes after the power is found, so −3 squared is −9. Evaluate Powers of Negative Integers and Name the Base and Exponent When Signs Are Tricky practice this.

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7th Grade Exponents Worksheets

Frequently Asked Questions

What is the difference between (−3) squared and −3 squared?

How do you know if a power of a negative number is positive or negative?

How do you raise a fraction to a power?

Can I compare powers without calculating them?

Do these 7th grade exponent worksheets have answer keys?

More math worksheets

What is ClassWeekly?