BRAINSTORM What KEYWORDS do you know for the four operations???

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BRAINSTORM What KEYWORDS do you know for the four operations??? ADDITION SUBTRACTION MULTIPLICATION DIVISION Sheet

1-1 Variables & Expressions Vocabulary: - LETTER that stands for a # Variable Constant Expression Evaluate - NUMBER that doesn’t change - phrase using VARIABLES, NUMBERS, and OPERATIONS - Replacing each variable with a number (Substituting)

Ex #1: Name the variable, constant and operation(s). A. x + 5 B. 2m C. D. 3a - 1

Ex #2: Write an expression for the word phrase. A. the sum of twice a number and 7 B. eight less than y C. half of g D. twice the sum of a number and 12

Ex #3: Evaluate (one variable) A. 4y – 15 for y = 6 B. 3(x + 7) for x = 5

Ex #4: Evaluate (more than one variable) A. 3ab for a = 2, b = 5 B.

YOU TRY! Write the expression for the word phrase. 1. the quotient of 12 and d 2. twice the difference of n and 4 Evaluate. 3. 2xy – z for x = 4, y = 3, and z = 1 4. 3(g + h) for g = 4 and h = 7

HOMEWORK p.8 #32-37, 40-50