Middle School Maths: Number

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Middle School Maths: Number

Decimals

Rounding

Can be written in expanded fraction form

Fractions

Dividing

Multiply by reciprocal

Multiplying

or Cancel down first, then

Mulitply numerator, then multiply denominator

Adding/Subtracting

Must have same denominator

Add numerator and place over denominator

Types

Equivalent

Two fractions representing same proportions

Mixed Number

Integer plus proper fraction

Improper

Numerator larger than denominator

Proper

Numerator smaller than denominator

Integers

Order of operations

BEDMAS

Divsion rules

- divided by - = +

- divided by + = -

+ divided by - = -

+ divided by + = +

Multiplication rules

- mulitplied by - = +

- mulitplied by + = -

+ mulitplied by - = -

+ mulitplied by + = +

Natural Numbers

Multiples

LCM

Smallest multiple common to two or more numbers

Result of multiplying a number by any other natural number

Factors

HCF

Largest factors common to two or more numbers

All numbers which divide evenly into a number