math expressions litterales

Multiplication Phrases Expression Division Phrases Expression Twice a number The product of 2 and n 2 multiplied by a number 2 times a number 2n The quotient of z and 3 A number divided by 3 The ratio of z and 3 Practice: Underline key words Write each phrase as an algebraic expression or equation 11 Seven less than a number is 15 12

Quantities that you ADD to form an algebraic expression are called terms 4n + 6b – 8 You CAN add/subtract like terms You CANNOT add/subtract unlike terms For each algebraic expression identify the number of terms Then list the coefficients and any constant terms Identify the number of terms the coefficients and the constant term of

Sep 6 2015 · as x that takes the place of a number in an expression like 3 x + 7 If a number is substituted for each pronumeral a value for the expression can then be obtained Evaluate the following expressions if x = 3 y = 4 and z = 8 a x + y b 3x + 2 y c 2x − y d x2y e (x + y)2 f x2 + y2 g z(x + y) h xz − 10 i xy − xz j k l z2 − z m xy 2

We will apply properties of arithmetic to generate equivalent expressions that include integers Write evaluate and simplify expressions Describe geometric patterns numerically pictorially symbolically and verbally Interpret expressions in terms of their geometric context

Expressions are mathematical phrases that may contain numbers operations and variables The operations act like a set of instructions that tell you what to do with the numbers and variables For example 2k + 4 tells you to double k then add four to it There are two types of expressions – numeric and variable