l>writing one operation equations, expressions, statements
writing one-operation equations, expressions, statements|Intro |Of & and |of practice | |add, subtract |multiply, divide |the worth of ... |exercises|
Intro prior to this page, the reader should haveRead the & and also concerning the use of this words in mathematics expressions.Two numbers -- One Operation: enhancement & Subtraction This passage presents words concerned each of the straightforward operations. The leader should currently be familiar with these words but, links have actually been listed in situation a evaluation is desired. Here are words connected with addition or subtraction. The context is the crucial to the signs needed, not words itself. Examples follow the list.
wordsalgebraic symbolsreasontwo reduced by a number 2 - x begin with 2, do it smallera number lessened by two x - 2 begin with a number, do it smallertwo much less than a number x - 2 start with a number, make it smallerfour an ext than a number x + 4 or 4 + x begin with a number, include 4the difference in between 6 and a number 6 - x subtract, starting with 6subtract 4 from a number x - 4 starting with a number, subtract 4the sum of 4 and a number x + 4 or 4 + x include to get a sumthe opposite of the amount of a number and three-(x+3) or -(3+x) take it sum, take it opposite of sum It might be practically for the leader to use the an approach the writer used in composing the reason column. Think of words expression as a job to be completed by a computation. Identify the to work needed. Think how one would begin and, then think the what would need to be done to complete the task described. Notification the provides of the preposition "of" in the last example. Preposition phrases rest up the expressions right into pieces. Those beginning with "of" are debated on the critical page. Below, notification how the preposition phrases, in blue, which start with by, between, from, and also than, do it easier to study the phrase and determine wherein to start and also what to do.wordsalgebraic symbolsreasontwo diminished by a number 2 - x begin with 2, do it smallera number lessened by 2 x - 2 begin with a number, make it smallertwo much less than a number x - 2 begin with a number, make it smallerfour much more than a number x + 4 or 4 + x begin with a number, include 4the difference in between 6 and also a number 6 - x subtract, starting 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 gain a sumthe the opposite of the amount of a number and three-(x+3) or -(3+x) take sum, take it opposite that sum extr information is found in a prepositional phrases. The preposition "from" is almost always a tip-off that subtraction is required. Often, the desired mathematical expression starts v what is in the "from" preposition phrase. Multiplication & Division below are words linked with multiplication or division. The paper definition is the an essential to the signs needed, not the word itself. Remember, the word and also is a signal the there space two or much more ideas, not that addition is required. Remember, to use prepositional and other paragraph to break up the expression in stimulate to recognize what is required.Examples follow the list.
wordsalgebraic symbolsreasonthe product of two and also a number 2x or 2(x) multiplya 3rd of the amount of a number and also two (x + 2)/3 begin with the sum, take a 3rd of itdouble the difference in between 6 and also a number 2(6-x) begin with the difference, multiply by 2triple the amount of four, five, and also a number 3(4 + 5 + x) begin with the sum, main point by 3the value of 4 nickels 4(5) or 5+5+5+5, etc. 4 fives or five four timesthe worth of part nickels 5x main point 5 times a number The last instance may it is in HARD. Use the table below to examine the reason much more clearly. The worth of x nickels is 5x. The value of part nickels is 5x. Number of nickelsvalue that nickels 1   5(1) = 5 2   5(2) = 10 3   5(3) = 15 4   5(4) = 20 x   5(x) = 5x ExercisesI. Write the expression/equation then check the answer. Note: Your web browser may publish the answers v spaces that space not ment to it is in there.1.) the square of 5 Answers5²2.) the square of 5 subtracted native a number Answersx - 5²3.)the opposite of a number Answers-x4.) six less than fifty percent of a number Answersx/2 - 6 or .5x - 6 5.) the product of a number and also four Answers4(x) or 4x or (4)(x)6.) a number reduced by fiveAnswersx - 5 7.) five less than a number Answersx - 5 8.) Ten is 5 less 보다 a number. Answers10 = x - 5 9.) A number is much less than five.Answersx See added info on these.10.) one much less than a number Answersx - 111.) one less than a twin a number Answers2x - 112.) the opposite of the amount of a number and 12 Answers-(x + 12)13.) triple a number Answers3x14.) twice the sum of a number and also 1 Answers2(x + 1)III. Complete the table. Inspect each answer.wordsalgebraic symbols1. Answersone much less than a number  x - 12. The amount of 6 and dual a number Answers6 + 2x or 2x + 63. Double the amount of six and a number Answers2(x + 6)4. The sum of 3 consecutive integersAnswers first + second + third(x) + (x + 1) + (x + 2) 5. The product the 2 continuous odd integers Answers(first)(second) (x)(x + 2) IV. Finish the table. Check each answer.wordsalgebraic symbols1. One more than a numberAnswersx + 1 or 1 + x 2. Answersone much less than a number or a number diminished by one x - 1 3. The product that a number and 3 and also a various numberAnswers3xy 4.