Algebraic Word Problems | ||||||||||||||||||
A lesson in Algebraic Expressions in Word Problems: Sharpen your pencils! |
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Algebra word problems are very useful to solve real-life problems. You CAN do them. Remember the famous words of Albert Einstein "Do not worry about your difficulties in mathematics, I assure you that mine are greater." Background When you take a real-world situation and translate it into math, you are actually 'expressing' it; hence the mathematical term 'expression'. Everything that is left of the equal sign is considered to be something you are expressing. Everything to the right of the equal sign (or inequality) is yet another expression. Simply stated, an espression is a combination of numbers, variables (letters) and operations. Expressions have numerical value. Equations are sometimes confused with expressions. To keep these two terms separate, simply ask yourself if you can answer with a true/false. If so, you have an equation, not an expression which would have numerical value. When simplifying equations, one often drops expressions such as 7-7 that equal 0. A few samples:
Getting Started Word problems consist of sentences. You will need to read the problem through carefully to ensure you have some understanding of what you are being asked to solve. Pay close attention to the problem to determine the key clues. Focus on the final question of the word problem. Read the problem again to make sure you understand what you're being asked for. Then, jot down the expression. Let's get started:
On your own: Sample 1: Answer: 0.p3
Sample 3
Becoming quite familiar with the use of algebraic expressions is an important skill to learning Algebra! Next Lesson: Expressions with more than one term. Previous Articles |