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Algebraic Expression

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Drill: Supply the next three terms

  • Z X Y
  • A+b, 2c+ 2d, 3e + 3f…
  • 10, 15, 20
  • ¼, 2/5, 3/6

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Expression or Equation

  • 1.a phrase
  • 2.a sentence
  • 3.solves
  • 4.simplifies
  • 5.has a relation symbol

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Expression or Equation

  • 6. has no relation symbol
  • 7. has no equal sign
  • 8. Has an equal sign
  • 9. Has a left and right sides
  • 10. Doesn’t have any sides

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Read the problem

  • The jeepney fare for the first 4 km is P8.00 and an additional P1.00 for every kilometer. Richie will go to Cubao from Antipolo. The distance from Antipolo to Cubao is about 28m. How much does she need to pay?

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Evaluate

  • 2y+8

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  • Glen is a newly hired messenger in a multinational company in Makati. As a trainee, he needs to wear a poloshirt every day. He was given a clothing allowance of P6,000.00. How many polo-shirts can he buy using this amount?

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Brand

Price per Shirt

Numerical Expression

Number of Shirts

Brand A

P500.00

6000÷500

12

Brand B

P400.00

6000÷400

15

Brand C

P250.00

6000÷250

24

Brand D

P 300.00

6000÷300

20

Brand E

P600.00

6000÷600

10

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  • Numerical expression-an expression that contains numbers and one or more operation symbols
  • Variable-any letter or symbol that represents a number
  • Constant-has a fixed value that does not change
  • Algebraic expression-a mathematical phrase that uses variables, numerals, and operation symbols

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Group

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Express the algebraic �

  • new altitude after rising for 25 meters
  • new altitude after falling 0 meters
  • new altitude after tripling its altitude

​

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  • What is algebraic expression?
  • How do you differentiate a variable from a constant?

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Determine the constant and the variable

  • 2a
  • X+3
  • 2f+5
  • -3(m+n)
  • -3c