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1 st Period
Guess the meanings of the following words: Variable Expression Base Constant Factor
Why is it important to understand the “language” of mathematics? CCCA Unit 1
Identifying Parts Guided NOTES
a mathematical phrase that contains variables, numbers, and operators (i.e. addition, subtraction, multiplication, division, parentheses, square roots, and exponents) Examples:
symbols or letters used to represent an unknown Examples:
items that are being added, subtracted, or divided Examples: 3 terms: 5a 2, -2xy, and 3 4 terms: P, -2x, a 2, and b
terms with same the variable raised to the same power Examples:
the number in front of a variable Examples: 123 9 1
the number up in the air next to a base the exponent of a number tells you how many times you multiply that number times itself Examples: 3 12 4
is what the exponent sits on the part that has been raised to a power Examples: 2 x y
a number that has no variable can be positive or negative Examples: -42 5 -8
items that are being multiplied together can be numbers, variables, or what is inside the parentheses Examples: 1 and 6…. Or 2 and 3 9 and x and y (x + 2) and (y – 3) 3 and (z – 9)
1. Simplify what is inside the parentheses 2. Take care of exponents 3. In order from left to right, multiplication or division 4. In order from left to right, addition or subtraction Examples: -18
Sum Plus Add More Than Increased Together
Difference Minus Decreased Less Than (swaps the order) Take away
Quotient Half Divide by
Product Twice Double Triple Times
Square Cubed To the power of Raised to a power
The sum of a number and 10 x + 10
The product of 9 and x squared 9x 2
9 less than g to the fourth power g 4 – 9
8 + 3x Eight increased by three times x
2. Four times a number plus 10 minus two times the same number is 6. 1. Five times a number increased by 5 is the same as 3 times the same number decreased by 7.
Writing an Expression Worksheet WORKSHEET
Variables and Expressions
WHAT ARE OPERATIONS ??? ALTHOUGH NUMBERS ARE THE MOST IMPORTANT PART OF MATH, WE WOULDN’T BE ABLE TO DO ANYTHING WITH THEM WITHOUT OPERATIONS! + - x.
Pre Test Translate each word into a mathematical operation.
Objective - To translate English words, phrases, and sentences into mathematical symbols, expressions, and equations respectively. _ + plus minus times.
Equalities Inequalities < Is less than = Equals- Is the same as
Translating Word Phrases into Algebraic Expressions or Equations
Warm up Match each of the phrases with its appropriate operation. Operations may be matched more than one. More than Decreased by Product Quotient.
Warm Up Divided by Difference More than Product Minus Sum
1. 5 word prediction. Guess the meanings of the following words: Variable, expression, base, constant, & factor.
d. –9 R, Q, Z, W, N R, Q R, I R, Q, Z Algebra II.
1. How long does a car traveling at 70 mph take to travel 88 miles, in hours? 2. Solve the following equation for x. 2x – 7 = hours 4.
Writing Algebraic Expressions I can write expressions that include operations with numbers and variables.
Algebraic Expressions. Education's purpose is to replace an empty mind with an open one. Malcolm Forbes.
Warm up Pick a number between Multiply by 8 Add 30 Minus 14
Quiz Time!! Clear your desk (except for pencil, calculator, and paper - if you want).
Objective 15 Word phrases to algebraic expressions ©2002 by R. Villar All Rights Reserved.
Variables in Algebra Goals I can evaluate a variable expression.
Note: Many problems in this packet will be completed together in class during review time. Students are not expected to complete every single problem in.
7 A&F 1.1 OBJECTIVE Use variables & operations to write an expression We LOVE Mathematical Language!!!
1-2 Order of Operations and Evaluating Expressions.
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