l>writing one operation equations, expressions, statements
writing one-operation equations, expressions, statements|Intro |Of & and |of exercises | |add, subtract |multiply, divide |the value of ... |exercises| Intro
before this page, the reader should haveRead that & and also concerning the use of these words in mathematics expressions.Two number -- One Operation: enhancement & Subtraction
This passage presents words concerned each of the simple operations. The leader should already be familiar with this words but, links have actually been detailed in instance a testimonial is desired. Here are words linked with addition or subtraction. The paper definition is the key to the signs needed, not the word itself. Examples follow the list.
|wordsalgebraic symbolsreasontwo diminished by a number 2 - x start with 2, make it smallera number diminished by 2 x - 2 start with a number, do it smallertwo much less than a number x - 2 begin with a number, make it smallerfour more than a number x + 4 or 4 + x begin with a number, include 4the difference between 6 and also a number 6 - x subtract, beginning with 6subtract 4 from a number x - 4 starting with a number, subtract 4the amount of 4 and also a number x + 4 or 4 + x include to gain a sumthe opposite of the amount of a number and three-(x+3) or -(3+x) take sum, take it opposite of sum It may be practically for the leader to usage the an approach the author used in writing the reason column. Think of words expression as a job to be perfect by a computation. Identify the to work needed. Think how one would start and, then think the what would have to be done to complete the job described. Notification the provides of the preposition "of" in the critical example. Preposition phrases break up the expressions into pieces. Those start with "of" are debated on the last page. Below, an alert how the preposition phrases, in blue, which start with by, between, from, and also than, make it less complicated to examine the phrase and also determine where to start and what come do.wordsalgebraic symbolsreasontwo decreased by a number 2 - x start with 2, make it smallera number reduced by 2 x - 2 begin with a number, do it smallertwo much less than a number x - 2 begin with a number, do it smallerfour an ext than a number x + 4 or 4 + x begin with a number, include 4the difference between 6 and also a number 6 - x subtract, beginning with 6subtract 4 from a number x - 4 starting with a number, subtract 4the amount of 4 and a number x + 4 or 4 + x add to obtain a sumthe the contrary of the amount of a number and also three-(x+3) or -(3+x) take it sum, take opposite of sum extr information is uncovered in a prepositional phrases. The preposition "from" is practically always a tip-off the subtraction is required. Often, the wanted mathematical expression starts through what is in the "from" preposition phrase. Multiplication & Division here are words linked with multiplication or division. The paper definition is the key to the signs needed, not words itself. Remember, the word and is a signal the there space two or more ideas, no that enhancement is required. Remember, to use prepositional and other unit volume to rest up the expression in stimulate to determine what is required.Examples monitor the list. |
wordsalgebraic symbolsreasonthe product the two and a number 2x or 2(x) multiplya 3rd of the amount of a number and two (x + 2)/3 start with the sum, take it a 3rd of itdouble the difference between 6 and a number 2(6-x) begin with the difference, main point by 2triple the sum of four, five, and also a number 3(4 + 5 + x) start with the sum, main point by 3the worth of 4 nickels 4(5) or 5+5+5+5, etc. 4 fives or 5 four timesthe worth of some nickels 5x main point 5 time a number The last example may be HARD. Use the table below to examine the reason much more clearly. The value of x nickels is 5x. The value of part nickels is 5x. Variety of nickelsvalue the nickels 1   5(1) = 5 2   5(2) = 10 3   5(3) = 15 4   5(4) = 20 x   5(x) = 5x Exercises
I. Create the expression/equation then examine the answer. Note: Your browser may publish the answers with spaces that space not ment to be there.1.) the square of five Answers5²2.) the square of 5 subtracted native a number Answersx - 5²3.)the the opposite of a number Answers-x4.) six much less than half of a number Answersx/2 - 6 or .5x - 6 5.) the product of a number and four Answers4(x) or 4x or (4)(x)6.) a number lessened by fiveAnswersx - 5 7.) five less than a number Answersx - 5 8.) Ten is 5 less than a number. Answers10 = x - 5 9.) A number is less than five.Answersx See extr info on these.10.) one less than a number Answersx - 111.) one much less than a dual a number Answers2x - 112.) opposing of the sum of a number and also 12 Answers-(x + 12)13.) triple a number Answers3x14.) twice the amount of a number and 1 Answers2(x + 1)III. Finish the table. Examine each answer.wordsalgebraic symbols1. Answersone much less than a number  x - 12. The amount of six and dual a number Answers6 + 2x or 2x + 63. Twin the amount of six and a number Answers2(x + 6)4. The sum of three consecutive integersAnswers an initial + 2nd + third(x) + (x + 1) + (x + 2) 5. The product that 2 consecutive odd integers Answers(first)(second) (x)(x + 2) IV. Finish the table. Examine each answer.wordsalgebraic symbols1. One more than a numberAnswersx + 1 or 1 + x 2. Answersone much less than a number or a number decreased by one x - 1 3. The product of a number and 3 and a various numberAnswers3xy 4.
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Answersdouble a number or the product the a number and also two 2x5. Answersthe square the a number or a number multiplied by itself x2