カテゴリー 全て - decimals - fractions - sequences - ratios

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Intro to elementary mathematics

Elementary mathematics covers fundamental concepts essential for understanding more complex mathematical ideas. It includes divisibility, where one number is a factor, multiple, or divisor of another, establishing foundational relationships between numbers.

Intro to elementary mathematics

Intro to elementary mathematics

Decimals

Decimals are numbers that have different place vaules,

for example

12.23 is a decimal

you can add decimals

12.2

+.08= 12.28

dividing decimals
multiplying decimals
Adding decimals
Subtracting decimals

Ratio

Divisibility

Divisibiluty:

there are four useful statements

a is a factor of b

b is a multiple of a

a is a divisor of b

b is divisivle by a

Division

partial quotients method

The partial quotents method is a few different methods for solving division.

Colum division
scaffolding method
Guessing method
partition

A partition is characterized by distrbuting a specificed quanity among a specifed number of partitions and determining the size in each partition.

whole numbers

Subtraction

Subtration of whole numbers defintion is; for any whole numbers a and b such that a is greater than or equal to b a - b is the unique whole number c such that b+c=a

Addition

The defiinion of additon of whole numbers is : let a & b be two disjoin infinite sets if n(a)=a and n(b)=b tthen a+b=n (aUB)

Integers

Percents

where we see percents

* grades

* humidity

* banking

* stats

Fractions

Division of fractions
multiplication of fractions
Subtraction of fractions
addtion of fractions

Greatest common Factor

GCF; is notation for the greatest common factor of two number a&b

For example;

a (4,6) the gcf of these two numbers is 2

b (4,9) the GCF of these two numbers is 1

Least common multiple

Prime numbers

composite numbers

Sequences

A sequence is an ordered list of objects, events, or n.umbers wich may be reffered to as elements of the sequence, members of the sequence or terms of the sequence

Geometric

Geometric sequence are sequences of numbers with a common ratio; that is if you form the ratio of any two consecutive terms in the sequence the ratio is the same.

Arithmetic

An arithnmetic sequence are sequences of numbers with a common difference; that is if you subtracted any two consecutive terms in the sequence the difference is the same number.

Problem Solving: