# Question 1. What are the four operations of arithmetic, and what are their operation signs?

May 28th, 2015
Studypool Tutor
Price: \$10 USD

Tutor description

ALGEBRA IS A METHOD OF WRITTEN CALCULATIONS that helps us reason about numbers. At the very outset, the student should realize that algebra is a skill.

Word Count: 2208
Showing Page: 1/12
ALGEBRA IS A METHOD OF WRITTEN CALCULATIONSthat helps us reason about numbers. At the very outset, the student should realize that algebra is a skill. And like any skill -- driving a car, baking cookies, playing the guitar -- it requires practice. A lot of practice. Written practice. That said, let us begin.The first thing to note is that in algebra we use letters as well as numbers. But the letters represent numbers. And the rules of algebra correspond to the rules of arithmetic, but we write those rules using letters.For example, we know in arithmetic that the order in which we add two numbers does not matter.7 + 3 = 3 + 7.In algebra, we express that as the rule:a+b=b+a.Letterasimply means the first number -- whatever it might be. Letterbmeans the second number. We use letters because we mean that the rule will be true foranynumbers. In algebra, we imitate with letters what we could write with numbers. (The symbols for numbers, after all, are nothing but written marks. And so are lettersAs the student will see, algebra depends only on the patterns that the symbols make.)The numbers are the numerical symbols, while the letters are calledliteralsymbols.Question 1.What are the fouroperationsof arithmetic, andwhat are theiroperation signs?To see the answer, pass your mouse over the colored area.To cover the answer again, click "Refresh" ("Reload").Do the problem yourself first!1) Addition: a+b. Th

## Review from student

Studypool Student
" Thanks, good work "

1830 tutors are online

### Other Documents

05/28/2015
05/28/2015
05/28/2015

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors