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Adding and Subtracting rational expressions

Authored by Donna Webster

Mathematics

7th - 8th Grade

CCSS covered

Used 1+ times

Adding and Subtracting rational expressions
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What definition best defines an expression?

Can have numbers (coefficients & constants)

Can have operators ((+,-, x, ÷)

Can have numbers (coefficients & constants), variables, operators (+,-, x, ÷), and does not have an equal sign.

Can have numbers (coefficients & constants), variables, operators (+,-, x, ÷), and does have an equal sign.

Tags

CCSS.6.EE.A.2B

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Choose all choices that are expressions.

4x+3

(3n-7n)-16+12

5x+29=84

10s+4s-8s

Tags

CCSS.6.EE.A.2B

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which definition best defines an equation?

Includes an equal sign (=).

Does not include an equal sign (=)

Can have two terms being compared to one another; it can determine whether two terms are equivalent.

Can have two expressions being compared to one another; it can determine whether two expressions are equivalent; it includes the equal sign (=).

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Simplify the following expression.

6w + (-5w)

w

-w

11w

-11w

Tags

CCSS.7.EE.A.1

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

When adding and subtracting rational expressions, my first step should be to:

Combine like terms in the numerators.
Determine a Least Common Denominator.
Factor all of the numerators and all of the denominators.
Change the operator to multiplication and reciprocate the second fraction.

Tags

CCSS.HSA.APR.D.7

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Find the least common denominator of the expression

18
6x
3xy
6xy

Tags

CCSS.HSA.APR.D.7

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Bob has factored the denominators and made sure there is a common denominator.  He must be...

Adding or Subtracting Rational Expressions
Multiplying Rational Expressions
Dividing Rational Expressions

Tags

CCSS.HSA.APR.D.7

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