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logarithmic properties review; expand and condense - Printable Mathematics Worksheets - Wayground

logarithmic properties review; expand and condense

12 questions

10th - 11th Grade

Mathematics

This Grade 10–11 Algebra II worksheet provides focused practice with logarithmic properties, asking students to expand logarithmic expressions into sums and differences and condense multiple logarithms into a single logarithm. Across 12 multiple-choice questions, students apply the product, quotient, and power properties with numerical and algebraic expressions, including coefficients, products, quotients, and powers of variables. Use the worksheet to check whether students can select an equivalent logarithmic form rather than merely evaluate a logarithm. Questions such as condensing log₅3 + log₅6 + log₅9 and expanding log₆(7x⁵y) require students to connect multiplication with addition, division with subtraction, and exponents with coefficients. This free printable worksheet includes a complete answer key for independent practice, lesson reinforcement, homework, or a quick skills check.

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logarithmic properties review; expand and condense

Total questions: 12

Name
Class
Date
1.

Condense the expression as a single logarithm.

log5 3 + log5 6 + log5 9

a)

log5 69

b)

log5 56

c)

log5 162

d)

log5 98

2.

Condense  5 log⁡2 125\ \log_2\ 12  

a)

 log⁡2 125\log_2\ \frac{12}{5}  

b)

 log⁡5 12\log_5\ \sqrt{12}  

c)

 log⁡2 125\log_2\ 12^5  

d)

 log⁡2(12×5)\log_2\left(12\times5\right)  

3.

Condense:  log⁡3(x)+log⁡3(y)\log_3\left(x\right)+\log_3\left(y\right)  

a)

 log⁡3(x)⋅log⁡3(y)\log_3\left(x\right)\cdot\log_3\left(y\right)  

b)

 log⁡3(xy)\log_3\left(xy\right)  

c)

 log⁡3(xy)\log_3\left(\frac{x}{y}\right)  

d)

 log⁡3 xlog⁡3 y\frac{\log_{3\ }x}{\log_3\ y}  

4.

Condense:  2log⁡5(x)+3log⁡5(y)2\log_5\left(x\right)+3\log_5\left(y\right)  

a)

 log⁡5(x2)+log⁡5(y3)\log_5\left(x^2\right)+\log_5\left(y^3\right)  

b)

 log⁡5(2x)+log⁡5(3y)\log_5\left(2x\right)+\log_5\left(3y\right)  

c)

 2log⁡5(x)⋅3log⁡5(y)2\log_5\left(x\right)\cdot3\log_5\left(y\right)  

d)

 log⁡5(x2y3)\log_5\left(x^2y^3\right)  

5.

Expand  log⁡6(7x5y)\log_6\left(7x^5y\right)  

a)

 log⁡6(7)+log⁡6(x5)+log⁡6(y)\log_6\left(7\right)+\log_6\left(x^5\right)+\log_6\left(y\right)  

b)

 log⁡6(7)+5log⁡6(x)+log⁡6(y)\log_6\left(7\right)+5\log_6\left(x\right)+\log_6\left(y\right)  

c)

 log⁡6(7x5)+log⁡6(y)\log_6\left(7x^5\right)+\log_6\left(y\right)  

d)

 5log⁡6(7x)+log⁡6(y)5\log_6\left(7x\right)+\log_6\left(y\right)  

6.
Expand

Expand

a)

4 ln 3y - 3 lnx

b)

ln3 + 4 lny - 3 lnx

c)

4 ln x 3 lny - 3 lnx

d)

ln3 + lny4 - lnx3

7.

Expand log (ab)

a)

log a x log b

b)

log a + log b

c)

log a - log b

d)

a log b

8.

Expand  log⁡(ab)\log\left(\frac{a}{b}\right)  

a)

log a - log b

b)

 log⁡alog⁡b\frac{\log a}{\log b}  

c)

loga b

d)

logb a

9.

Expand  log⁡(a2b)\log\left(a^2b\right)  

a)

2log(a) + log(b)

b)

2log(a) + 2log(b)

c)

log(a) + log(b)

d)

2log(a) * log(b)

10.
Question Image
a)

log⁡(xy3)\log\left(xy^3\right)

b)

log⁡(x6−y3)\log\left(x^6-y^3\right)

c)

log⁡(x6y3)\log\left(\frac{x^6}{y^3}\right)

d)

log⁡(x6y3)\log\left(x^6y^3\right)

11.

Expand . Choose the best answer. log⁡ x2y3\log\ \frac{x^2}{y^3}  

a)

log x² + log y³

b)

2 log x - 3 log y

c)

log x - log y

d)

 2 log x  ÷\div   3 log y

12.

condense into one logarithm  2log⁡5 a+log⁡5 b−4log⁡5 c2\log_5\ a+\log_5\ b-4\log_5\ c  

a)

 log⁡5(a2bc4)\log_5\left(\frac{a^2b}{c^4}\right)  

b)

 log⁡5(abc)\log_5\left(\frac{ab}{c}\right)  

c)

 log⁡5(a2+b−c4)\log_5\left(a^2+b-c^4\right)  

d)

 −2log⁡5(a+b−c)-2\log_5\left(a+b-c\right)  

WaygroundAnswer Key

logarithmic properties review; expand and condense

Total questions: 12

1.
c)

log5 162

2.
c)

 log⁡2 125\log_2\ 12^5  

3.
b)

 log⁡3(xy)\log_3\left(xy\right)  

4.
d)

 log⁡5(x2y3)\log_5\left(x^2y^3\right)  

5.
b)

 log⁡6(7)+5log⁡6(x)+log⁡6(y)\log_6\left(7\right)+5\log_6\left(x\right)+\log_6\left(y\right)  

6.
b)

ln3 + 4 lny - 3 lnx

7.
b)

log a + log b

8.
a)

log a - log b

9.
a)

2log(a) + log(b)

10.
c)

log⁡(x6y3)\log\left(\frac{x^6}{y^3}\right)

11.
b)

2 log x - 3 log y

12.
a)

 log⁡5(a2bc4)\log_5\left(\frac{a^2b}{c^4}\right)  

FAQs

What does the logarithmic properties review worksheet cover?

This worksheet covers expanding logarithms into sums or differences and condensing sums, differences, and coefficients into one logarithm. Its 12 multiple-choice questions use numerical and algebraic examples, including forms such as log₃(x) + log₃(y), log(a²b), and 2log₅a + log₅b − 4log₅c, so students practise selecting equivalent expressions using the product, quotient, and power properties.

How can I use this worksheet to teach students to expand and condense logarithms?

Introduce one property at a time, then model how a product becomes a sum, a quotient becomes a difference, and an exponent becomes a coefficient. Have students explain the property behind each choice before completing the multiple-choice set, using the numerical condensing items first and the variable expressions afterward. Discuss why an expression such as log₅(x²y³) represents the condensed form of 2log₅x + 3log₅y.

What mistakes should I watch for when students complete this logarithm worksheet?

Students may add or multiply logarithm values instead of combining their arguments, leave a coefficient attached to a logarithm instead of using the power property, or choose addition when expanding a quotient should produce subtraction. Watch especially for lost exponents in items such as log(x²/y³), where both the coefficient 2 and the negative coefficient −3 must be preserved. In condensing questions, students may also place a denominator factor in the numerator or omit the denominator entirely.

How do I assign and grade this logarithm worksheet?

The worksheet is available as a printable PDF and as a digital quiz on Wayground, and it includes a complete answer key for checking the 12 multiple-choice responses. For printed submissions, scan student work with the Wayground for Teachers app to help grade responses. The printable format can also support schools that are reducing screen time.

How can I differentiate this expanding and condensing logarithms worksheet?

Use the worksheet’s Advanced Settings to increase font size or widen font spacing so the logarithmic notation, coefficients, and fractions are easier to distinguish. You can also select a dyslexia-friendly font or translate the worksheet’s directions and answer choices into another language. These file-level options can make the multiple-choice expressions more readable without changing the logarithm problems.

Where can I find more worksheets like this on Wayground?

Wayground offers a comprehensive collection of free printable worksheets and practice problems across all subjects, with downloadable PDFs and answer keys to help students master essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.