Place value columns to the right of the decimal point

Percent means "hundredth," by definition

Decimal and percent equivalents for common fractions: 1/2, 1/4,1/3, 2/3, 1/10, 1/100

Mental Math

Always say decimals as their fractional equivalents, ex. .1 as 1/10, .27 as 27/100, .395 as 395/1000

Multiplying decimals by 10 or powers of 10 - slide decimal point to the right - MMJH #38

Dividing decimals by 10 or powers of 10 - slide decimal point to the left - MMJ #39

* MMJH is Mental Math for Junior High by Hope, Reys & Reys

Written Math

To simplify fractions, rather than GCF, use repeated division: divide top and bottom by any number that divides into both (start simply, with 2), and keep doing that until there are no more common factors

When multiplying fractions, remember canceling, to make your life easier! Divide top & bottom by the same number before multiplying.

To convert fractions to decimals, remember that a fraction bar can be interpreted either as a fraction bar or as "divided by" - simply divide to get the decimal

To convert fractions to decimals, write the decimal as its fractional equivalent, and then reduce

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Multiplying & dividing fractions

Just multiply across – you don’t need to find common denominators!
To divide, just flip the second fraction and multiply!

You can’t multiply or divide mixed numbers – you have to convert them to improper fractions first.

Adding & subtracting fractions

You can add mixed numbers without converting them to improper fractions! Just add the whole numbers and then add the fractions.

You have to convert to common denominators before adding or subtracting fractions.

## Learning Targets

## Memorize

## Mental Math

Mental Math for Junior Highby Hope, Reys & Reys## Written Math

To divide, just flip the second fraction and multiply!