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Multiplying on an Abacus « 360
Jun 25, 2009 . If you have a number like 358 and you want to add 18, you could do it bead by . Before we get started on the process, it's helpful to take a look at the big picture. . Since we're done multiplying 87 by 5, we can remove the 5.
http://threesixty360.wordpress.com/2009/06/25/multiplying-on-an-abacus/
BEDMAS Definition. What does BEDMAS mean?
If multiplication comes first, do it before dividing. The same holds true for addition and subtraction, when the subraction comes first, subtract before you add.
http://math.about.com/od/glossaryofterms/g/What-Is-Bedmas.htm
The Order of Operations: PEMDAS
The "operations" are addition, subtraction, multiplication, division, . operations states which operations take precedence (are taken care of) before which other operations. . It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction". . After that is done, then I can finally add in the 4: .
http://www.purplemath.com/modules/orderops.htm
Lesson on Order of Operations - Math Goodies
Student 1 performed the operation of addition first, then multiplication; . must first perform all calculations above and below the fraction bar BEFORE dividing.
http://www.mathgoodies.com/lessons/vol7/order_operations.html
ORDER OF OPERATIONS - SOS Math
Rule 20: Multiplication and division must be completed before addition and . complete that task, you have what appears to be two fractions that you are adding .
http://www.sosmath.com/algebra/fraction/frac3/frac39/frac39.html
Order of Operations and Evaluating Expressions - Regents Exam ...
Parenthesis, Exponents, (Multiplication/Division), (Add/Subtract) . It may be the case where division will be done BEFORE multiplication or subtraction will be .
http://www.regentsprep.org/Regents/math/ALGEBRA/AOP2/Lorder.htm
Order of Operations - PEMDAS
Exponents (Powers, Roots) before Multiply, Divide, Add or Subtract. Example: . After you have done "P" and "E", just go from left to right doing any "M" or "D" as you find them. . Multiplication and Division rank equally, so just go left to right: .
http://www.mathsisfun.com/operation-order-pemdas.html
