When I am doing math how do I use my computer keyboard to do multiplication adding and subtracting?

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Hi, many symbols are found using Shift key plus a number. Some symbols are found with the AltCar key (next to the space bar) with a number Another way, is to use the table of caracters ASCII found on Internet: you use the Alt Key with the 3 digits number that matches the caracter you want. I include the link for the table.

http://www.toutimages.com/codes_caracteres.htm

Good luck!

Posted on Nov 21, 2013

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Posted on Jan 02, 2017

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here you go.

### Grade 6 Math Circles Algebra Order of Operations (BEDMAS) - CEMC

www.cemc.uwaterloo.ca/events/mathcircles/2013-14/Fall/Junior6_Oct8.pdf*Grade* 6 *Math* Circles ... Suppose you are asked to evaluate an *expression* that looks something like this ... When an *expression* contains many *operations*, we must be careful of what *order* we *do* ... sion and *multiplication*, and finally *addition* and *subtraction*. ... According to BEDMAS, *division* is a higher priority than *addition*.
How to do Order Of Operations and algebraic expressions with division and...

Apr 24, 2017 | Office Equipment & Supplies

you have to know the value of r and then you follow the maths laws of multiplication.division , addition and subtraction in that order

so 1.734 = the sum of 1+r, multiplied by 5

so 1.734 = the sum of 1+r, multiplied by 5

Oct 14, 2015 | Office Equipment & Supplies

Quick-Start Guide
When you enter an expression into the calculator, the calculator will simplify the expression by expanding multiplication and combining like terms. At this point the calculator will attempt to factor the expression by dividing a G C F, and identifying a difference between two squares, or factorable trinomials. Use the following rules to enter expressions into the calculator.
Variables
Any lowercase letter may be used as a variable.
Exponents
Exponents are supported on variables using the ^ (caret) symbol. For example, to express x 2, enter x ^ 2. Note: exponents must be positive integers, no negatives, decimals, or variables. Exponents may not currently be placed on numbers, brackets, or parentheses.
Parentheses and Brackets
Parentheses ( ) and brackets [ ] may be used to group terms as in a standard expression.
Multiplication, Addition, and Subtraction
For addition and subtraction, use the standard + and - symbols respectively. For multiplication, use the * symbol. A * symbol is optional when multiplying a number by a variable. For instance: 2 * x can also be entered as 2x. Similarly, 2 * ( x + 5 ) can also be entered as 2 ( x + 5 ) ; 2 x * ( 5 ) can be entered as 2 x ( 5 ). The * is also optional when multiplying parentheses, example: ( x + 1 ) ( x - 1 ).
Order of Operations
The calculator follows the standard order of operations taught by most algebra books - Parentheses, Exponents, Multiplication and Division, Addition and Subtraction. The only exception is that division is not currently supported; attempts to use the / symbol will result in an error.
Division, Square Root, Radi cals, Fractions
Division, square root, radi cals, and fractions are not supported at this time. A future release will add this functionality.

that's all I can say basically I learned it this way.

that's all I can say basically I learned it this way.

Jul 09, 2015 | Office Equipment & Supplies

+ symbol means to add together, - symbol means to subtract one from the other, x means to multiply each, / means to divide.

Jan 29, 2015 | Super Tutor Pre Algebra (ESDPALG)

What sort of symbols do you mean? Maths, ASCII keyboard, emoticons etc?

Jun 20, 2014 | Computers & Internet

When you perform an arithmetic operation such as addition, subtraction,
multiplication, or division the result has a specific name. The result
of addition is called the** sum;** the result of a subtraction is called the **difference**; the result of multiplication is the **PRODUCT**. Finally the result of a division is the **quotient**.

Apr 21, 2013 | ASUS Eee Computers & Internet

When you perform an arithmetic operation such as addition, subtraction, multiplication, or division the result has a specific name. The result of addition is called the** sum;** the result of a subtraction is called the **difference**; the result of multiplication is the **PRODUCT**. Finally the result of a division is the **quotient**.

Apr 21, 2013 | Office Equipment & Supplies

The following are examples of expressions:

2

*x*

3 + 7

2 ×*y* + 5

2 + 6 × (4 - 2)

*z* + 3 × (8 - *z*)

Example:

Roland weighs 70 kilograms, and Mark weighs*k* kilograms. Write an expression
for their combined weight. The combined weight in kilograms of these two people
is the sum of their weights, which is 70 + *k*.

Example:

A car travels down the freeway at 55 kilometers per hour. Write an expression for the distance the car will have traveled after*h* hours. Distance equals rate
times time, so the distance traveled is equal to 55 × *h*..

Example:

There are 2000 liters of water in a swimming pool. Water is filling the pool at the rate of 100 liters per minute. Write an expression for the amount of water, in liters, in the swimming pool after*m* minutes. The amount of water added
to the pool after *m* minutes will be 100 liters per minute times *m*,
or 100 × *m*. Since we started with 2000 liters of water in the pool,
we add this to the amount of water added to the pool to get the expression 100 ×
*m *+ 2000.

To evaluate an expression at some number means we replace a variable in an expression with the number, and simplify the expression.

Example:

Evaluate the expression 4 ×*z* + 12 when *z* = 15.

We replace each occurrence of*z* with the number 15, and simplify using the
usual rules: parentheses first, then exponents, multiplication and division, then
addition and subtraction.

4 ×*z* + 12 becomes

4 × 15 + 12 =

60 + 12 =

72

Example:

Evaluate the expression (1 +*z*) × 2 + 12 ÷ 3 - *z* when
*z* = 4.

We replace each occurrence of z with the number 4, and simplify using the usual rules: parentheses first, then exponents, multiplication and division, then addition and subtraction.

(1 +*z*) × 2 + 12 ÷ 3 - *z* becomes

(1 + 4) × 2 + 12 ÷ 3 - 4 =

5 × 2 + 12 ÷ 3 - 4 =

10 + 4 - 4 =

10.

**hope that help you**

2

3 + 7

2 ×

2 + 6 × (4 - 2)

Example:

Roland weighs 70 kilograms, and Mark weighs

Example:

A car travels down the freeway at 55 kilometers per hour. Write an expression for the distance the car will have traveled after

Example:

There are 2000 liters of water in a swimming pool. Water is filling the pool at the rate of 100 liters per minute. Write an expression for the amount of water, in liters, in the swimming pool after

To evaluate an expression at some number means we replace a variable in an expression with the number, and simplify the expression.

Example:

Evaluate the expression 4 ×

We replace each occurrence of

4 ×

4 × 15 + 12 =

60 + 12 =

72

Example:

Evaluate the expression (1 +

We replace each occurrence of z with the number 4, and simplify using the usual rules: parentheses first, then exponents, multiplication and division, then addition and subtraction.

(1 +

(1 + 4) × 2 + 12 ÷ 3 - 4 =

5 × 2 + 12 ÷ 3 - 4 =

10 + 4 - 4 =

10.

Jun 22, 2011 | LeapFrog Turbo Twist Math Cartridge 5th...

Fundamental Operations are Multiplication, Division, Addition and Subtraction.

There are rules to do these and examples showing how these operations are done.

Please follow your maths books and do these.

luciana44

There are rules to do these and examples showing how these operations are done.

Please follow your maths books and do these.

luciana44

Dec 07, 2009 | Epson LX-300 Matrix Printer

Hello desireejane,

One method is to do the following

public static long octalToDecimal(String octal) throws NumberFormatException {

// Initialize result to 0

long res = 0;

// Do not continue on an empty string

if (octal.isEmpty()) {

throw new NumberFormatException("Empty string is not an octal number");

}

// Consider each digit in the string

for (int i = 0; i < octal.length(); i++) {

// Get the nth char from the right (first = 0)

char n = octal.charAt(octal.length() - (i+1));

int f = (int) n - 48;

// Check if it's a valid bit

if (f < 0 || f > 7) {

// And if not, die horribly

throw new NumberFormatException("Not an octal number");

} else {

// Only add the value if it's a 1

res += f*Math.round(Math.pow(2.0, (3*i)));

}

}

return res;

}

One method is to do the following

- Convert the octal, hexadecimal or binary to decimal.
- Add or Subtract the decimal normally
- Convert the result back to octal, hexadecimal or binary.

**Convert the octal to decimal:**

public static long octalToDecimal(String octal) throws NumberFormatException {

// Initialize result to 0

long res = 0;

// Do not continue on an empty string

if (octal.isEmpty()) {

throw new NumberFormatException("Empty string is not an octal number");

}

// Consider each digit in the string

for (int i = 0; i < octal.length(); i++) {

// Get the nth char from the right (first = 0)

char n = octal.charAt(octal.length() - (i+1));

int f = (int) n - 48;

// Check if it's a valid bit

if (f < 0 || f > 7) {

// And if not, die horribly

throw new NumberFormatException("Not an octal number");

} else {

// Only add the value if it's a 1

res += f*Math.round(Math.pow(2.0, (3*i)));

}

}

return res;

}

Mar 24, 2009 | Sun Java Programming Language (cdj-275)

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