Adding and Subtracting Rational Expressions

This video tutorial covers the conversion of phrases into numerical expressions, equations, and inequalities. It introduces keywords for operations like addition, subtraction, multiplication, and division, and explains turnaround phrases that require reversing the order of numbers. The tutorial includes practice problems with solutions and discusses inequality symbols, providing examples for better understanding.

What does the word 'sum' indicate in a mathematical phrase?

• Addition

• Multiplication

• Division

• Subtraction

Tags

CCSS.6.EE.A.2A

What does 'decreased by' suggest in a mathematical expression?

• Multiplication

• Subtraction

• Addition

• Division

Tags

CCSS.6.EE.A.2A

If a phrase states 'a number increased by 5', how should it be written?

• x + 5

• 5 - x

• x / 5

• 5 / x

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

If a phrase includes 'the product of', what operation does it imply?

• Subtraction

• Multiplication

• Division

• Addition

Tags

CCSS.6.EE.A.2A

If 'the quotient of a number and 5' is part of a phrase, how is it represented?

• x - 5

• 5 / x

• x + 5

• x / 5

Tags

CCSS.6.EE.A.2A

How should '12 less than a number' be written as an expression?

• x + 12

• 12 - x

• x - 12

• 12 + x

Tags

CCSS.6.EE.A.2A

What does 'twice a number' translate to in an algebraic expression?

• 2 + x

• x / 2

• 2x

• x - 2

What does 'the sum of a number and 7 is 36' translate to in equation form?

• x - 7 = 36

• 7 - x = 36

• 7 / x = 36

• x + 7 = 36

Tags

CCSS.6.EE.B.8

How is 'a number is less than -10' represented using inequality symbols?

• -10 > x

• -10 < x

• x > -10

• x < -10

Tags

CCSS.6.EE.B.8

What does 'a number is at least 10' mean in terms of inequality?

• x < 10

• x <= 10

• x >= 10

• x > 10

Tags

CCSS.6.EE.B.8