ALGEBRAIC EXPRESSION. ahsajdasdnkasupptx

ALGEBRAIC EXPRESSIO

1. ALGEBRAIC EXPRESSION

2. REVIEW Show the rules and the last three terms 3, 6, 9, 12, ___, ____, _____ 1, 4, 9, 16 ____, ____, _____ 2, 4, 6, 8, _____, ____, _____ ½,1/3,1/4, ____, _____, ____ 1,8,27,____,____,____ 1,8,27, ____,_____,_____

3. W e have the sum of 6 and 3, can you translate this into numerical expression?

4. T he difference of 2 and a number

5. T he sum of 6 and a number is 10

6. 3-N 4+N=10 An expression is a mathematical phrase that contains numbers, variables, or both. Expressions never have an equal sign An equation is a mathematical sentence that says two expressions are equal. Equation always have an equal sign

7. Variable – is any letter or symbol that represents a number. X + 2 = 5

8. Constant – has a fixed value that does not change . X + 2 = 5

9. Performing the Activity Tell whether the following is an expression or equation and translate them into letters or symbols. 1. The sum of seven and a number is 13. 2. A number subtracted by 20. 3.Eight multiplied by 3 is 24. 4. 2x+7= 28 5. 3y-8

10. RAISING THE CARDS

11. 8+z Eight pesos is added z pesos

12. M increased by ten candies is 40 candies M +10 = 40

13. Nine less than W passenger 9-W

14. Twenty biscuits decreased by P biscuits equals two biscuits 20 – P = 2

15. 3R 3*R 3(R) Thrice a number R rides

16. Mr. and Mrs. Romeo own a laundry shop. They have 152 customers this week, 24 fewer than last week. Write an algebraic equation for the number of customers they had last week

17. Twenty-four fewer than the number last week is 152 . 24 - M = 152

18. Algebraic equations Algebraic expressions Variable Constant

19. Translate the following numerical expressions/equations into word phrases: 2x + 5 5x – 8 4 (y+7) 2n=120 4n=16

20. Thank you