Presentation on theme: "Day 1 1. List all words that would describe the following:"— Presentation transcript:
1 Day 1 1. List all words that would describe the following: Addition Subtraction Multiplication Division2. Write the following as algebraic expressions:a.) the sum of p and 8b.) three less than bc.) the sum of twice a number and 31d.) nine less than five times a numberSumAdded toPlusMore thanDifferenceSubtracted fromMinusLess thanProductMultiplied byTimesTwiceQuotientDivided byp + 8b – 32n+315n – 9
2 I can write an algebraic expressions. 1.1 Using variables in expressions1.2 Exponents & Order of OperationsI can write an algebraic expressions.I can simplify numerical expressions using order of operations.I can evaluate expressions.I can define a variable and write an expression/equation.Don’t forget to write this “I Can” in your target sheet.(Bold words above are to signal those words were listed as an objective on the pre-test)
3 Variable - A symbol that represents one or more numbers. 1.1 Using variables in expressions1.2 Exponents & Order of OperationsVariable - A symbol that represents one or more numbers.Algebraic Expression - A mathematical phrase that can include numbers, variables, and operation symbols.
4 Ex 1. Write the following algebraic expressions in words: a.) h + 7 b.) 6 – pc.) 5d + 2i.e. The sum of h and seveni.e. p less than sixi.e. the sum of two and the product of five and dEx 2. Define the variables and write an equation for the following:a.) total income from selling tickets to a school play for $5 eachb.) the total cost is a number of packages of gum times $0.30c.) the volume of a rectangular box is the product of length, width, and height.i.e. T = total incomen = number of ticketsT = 5ni.e. T = total costn = number of packagesT = 0.30ni.e. V = volumel = lengthw = widthh = heightV = lwh
5 Simplify - put a numerical expression in its simplest form. Exponent - tells you how many times a number is multiplied by itself.Base - the number that is the factor. (the bottom #)Power - the combination of a base and exponent.
7 Order of Operations Work with what’s in parentheses . Simplify powers (exponents).Multiply and divide in order from left to right.Add and subtract in order from left to right.PEMDASleaseParenthesesExponentsMultiplicationDivisionAdditionSubtractionxcuseyearuntally