Categories

## [Speed Math] SUBTRACTING FROM MULTIPLES OF 10

Here’s an example of a SPEED MATH shortcut for SUBTRACTING FROM MULTIPLES OF 10 : (AS) N10-M from the ADDITION SUBTRACTION category. ### When can I use this method?

For subtracting any number from multiples of 10n.

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PL02A0C5A7C655B3D1″] Download Practice sheet for SUBTRACTING FROM MULTIPLES OF 10

### Notes –

1. This method uses the concept of borrowing from adjacent digits of the number, but instead of doing so at every state in the subtraction; it gives the borrowed values right at the first step.
2. Make sure to note how the Minuend is converted.
3. It allows a faster, easier and mistake proof way of subtracting numbers.

### Related Shortcuts –

None

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Categories

## [Speed Math] SUBTRACTION USING ADDITION

Here’s an example of a SPEED MATH shortcut for SUBTRACTION USING ADDITION: (AS) N-M(+) from the ADDITION SUBTRACTION category. ### When can I use this method?

For subtracting any numbers.

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PL670D17BFF84EEF70″] Download Practice sheet for SUBTRACTION USING ADDITION

### Notes –

1. This method uses the concept of rounding up the Subtrahend to a number that is easier to subtract and then compensating the extra difference subtracted by adding it back to the answer.
2. It allows a faster, easier and mistake proof way of subtracting numbers.

### Related Shortcuts –

[contentblock id=speedmath-blockquote]

Categories

## [Speed Math] ADDING USING SUBTRACTION

Here’s an example of a SPEED MATH shortcut for ADDING USING SUBTRACTION: (AS) N+M(-) from the ADDITION SUBTRACTION category. ### When can I use this method?

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PLEF2C58D8EE124CFB”] Download Practice sheet for ADDING USING SUBTRACTION