772-2011: dcassie

Showing posts with label dcassie. Show all posts

Tuesday, February 14, 2012

Factor.

Factor-
A number that can go into another with no remainder.

e.g. 12/2=6

12 is divisible by 2
2 is a factor of 12

Divisible rule for 1.

Divisiblity rule for 1:
All whole numbers divisible by 1.

Divisible rule for 2.

The rule for the number 2 is-
All even numbers are divisible by 2

All even numbers end in 0, 2, 4, 6, and 8.

B.E.D.M.A.S

B.E.D.M.A.S
Brackets
Exponents
Division
Multiplication
Addition
Subtraction

To solve a b.e.d.m.a.s question, check brackets going down then you put those questions in order.

Greatest Common Factor Definition.

Greatest common factor-
Factors are the numbers you multiply together to get another number:

Then the common factors are those that are found in both numbers:

It is simply the largest of the common factors.

Multiple.

The product of any given number
and natural number like 1, 2, and 3.

Multiple example:
Some multiples of 5:
5, 10, 15, 20, 25, 30, 35, 40, 50, and 60.

Divisiblility Rules.

The rules of Divisibility.

1- Any whole number is divisible by 1.

2- All even numbers are divisible by 2.

3- The sum of the digits must be a multiple of three.

4- Numbers that can be divided by two twice are divisible by 4.

5- All numbers that end with 0 and 5 are divisible by 5.

6- Numbers that are divisible by 2 and 3 are divisible by 6.

7- No 7

8- Numbers that can be divided by two three times are divisible by 8.

10- All numbers that end with 0 are divisible by 10.

Variable, Expession, Value, Constant, and Numerical Coefficient.

Variable- A letter that represents an unknown number.
(Examples on side.)

Expression- Any single number, variable or combination of operations (+, -, and x.) involving numbers and variables.
(Examples on side.)

Value- A known or calculated amount.

Constant- A number that doesn't change and increases or decreases the value of the expression.

Numerical Coefficient- A number that multiplies the variable.