Search form Search Problem:
This skill will come in handy when working with word problems or real life situations.
Pay close attention to the "key words" that represent mathematical operations. You are probably very used to translating words into numerical expressions. We are used to seeing the words, plus, sum, difference, minus, product The good news is that these very same words that we use to write numerical expressions are going to be used to write algebra expressions.
The difference between a numerical expression and an algebra expression is that we will be using variables when writing an algebraic expression. Instead of "8 plus 9" with two given numbersyou would see, "a number plus 9".
We don't know exactly "what number", so we would use a variable to indicate that it can be any number.
Key words for each operation are indicated in bold. This will help you to easily translate the expression. Algebraic Expressions and Key Words for Addition As, you can see from the red, bold words, the key words for addition are: Please also remember that addition is commutative; therefore, you can reverse the digits and you will end up with the same answer.
Now, let's take a look at the key words for subtraction. Remember that subtraction is not commutative, so the order in which write the digits does matter! Now we'll take a look at key words for multiplication word problems.
Of is the tricky word. This is mostly used when you are multiplying a fraction times a number. Think of "of" meaning to multiply when you are working with fractions. The last operation that we will study is division. Division is not commutative, so you must pay close attention to the order in which you write the expression.
The key words are: Play close attention to the order in which it is written. Quotient is also a key word for division.Write a verbal expression for each algebraic expression.
21 í x3 $(5 twenty -one minus x to the third power $(5 the sum of three times m to the fifth power and nine.
Variable and Verbal Expressions Date_____ Period____ Write each as an algebraic expression. 1) the difference of 10 and 5 2) the quotient of 14 and 7 3) u decreased by 17 4) half of 14 Write each as a verbal expression.
13) x 2 half of x 14) a + 9 a increased by 9 15) 19 − 3 the difference of 19 and 3. May 18, · Translate words and expressions into algebraic expressions involving variables. Youtube videos by Julie Harland are organized at lausannecongress2018.com After you enter the expression, Algebra Calculator will evaluate 2x for x=3: 2(3) = 6.
More Examples Here are more examples of how to evaluate expressions in Algebra Calculator. Sep 30, · Learn how to write an algebraic expression from verbal sentence as well as writing out a sentence from a algebraic expression.
How to write a verbal expression from . A mathematical verbal expression is a translation into words of an algebraic expression that can consist of different operations, numbers and variables. An example of this is translating the mathematical equation or phrase "90 - 4(a + 8)" to the verbal expression "90 decreased by 4 times the sum of.