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6 variable 555 perfect square - a number that has a whole number as its square root. √9 : 3 3 3 = 9 3² : 9 9 the distance between a number and zero. 1³1 = 3 1-31 3 exponent. the number that tells how many times to multiply the base. 35 = 3. 3. 3. 3. 3 exponent is 5 numerical expression a special value that multiplies itself 2 times to give the number. √√√√36 = 6 6 6 = 36 3 ddition . ultiplication ubtraction a letter used to represent a number. 3 x + 4 ५ 8 14 are variables a mathematical sentence that contains only numbers and operations. 3 (2+4) 8/12 rackets innermost symbols first xponents ivision - do what comes first left to right DAY 3 - EVALUATING ALGEBRAIC EXPRESSIONS VOCABULARY substitute: replace a variable with a defined number. always use parenthesis. b when algebraic expression: a mathematical sentence that contains variables, numbers and operations. 3x²- 7 TO EVALUATE AN ALGEBRAIC EXPRESSION a = 2 b = 4 6 1. replace each variable with the given value 2. if a variable is next to a number, you must multiply 5 x * 5x is e.g: 3. use the order of operations to simplify the expression DAY - SIMPLIFYING ALGEBRAIC EXPRESSIONS term - a number, a variable, or a numbered multiplied by variable (s) 4x 2 y + 5 3 terms, 4.x, - like terms constant a fixed value. a number without a variable being multiplied with it. 4 x 2 y + 5 5 is a constant coefficient - 2 y, 5 terms that have the same variable (s) and the same. exponents. 5a² 8-3a² a number used to multiply a variable. 4 x - 2y + 5 2 coefficients, 4, -2 KOKUYO LOOSE LEAF distributive property. the exponent! COMBINING LIKE TEAMS when you have like terms in an expression, simplify the expression by adding or Subtracting the coefficients and keep the variable and exponent. do not change 100 DAY 5 - PUTTING IT ALL TOGETHER a simplified expression has no parenthesis and all like terms are combines. TO SIMPLIFY EXPRESSIONS first distribute. second: combine like terms GEOMETRY APPLICATIONS to find the perimeter of a shape you add up the lengths of all the sides. - DAY 6- TRANSLATING EXPRESSIONS addition. multiplying a number by a group of numbers added together gives the same result as doing each multiplication seperately. 4 (2 x + 1) = 4 (2 x) + 4 (1) what does translate" mean? expressing something in another language KEY WORDS & PHRASES . · Sum total all together plus (+) increase more than Subtraction minus (-) difference fewer take away decrease less than multiplication. • product times per each division quotient average per each