# Decimals

### Math

## Adding with decimals

To add decimals, follow these steps:

- Write down the numbers, one under the other, with the decimal points lined up.
- Put in zeros so the numbers have the same length.
- Then add using column addition, remembering to put the decimal point in the answer by aligning it up.

## Subtracting with decimals

To subtract decimals, follow these steps:

- Write down the two numbers, one under the other, with the decimal points lined up.
- Add zeros so the numbers have the same length.
- Then subtract normally, remembering to put the decimal point in the answer by aligning it up.

## Multiplying with decimals

Just follow these steps:

- Multiply normally, ignoring the decimal points. (DO NOT ALIGN THE DECIMALS)
- Then put the decimal point in the answer by counting the decimal PLACES and counting and adding them to the answer .

## Dividing decimals by whole numbers

To divide a decimal number by a whole number:

- Divide normally.
- Put the decimal up, make sure the decimals of the top and bottom are aligned up where the answer goes.

## Dividing decimals by decimals

To divide decimal numbers:

- If the divisor is not a whole number, move decimal point to right to make it a whole number and move decimal point in dividend (inside) the same number of places.
- Divide as usual.
- Put decimal point directly above decimal point in the dividend.