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## [Speed Math] CUBING 4-DIGIT NUMBERS NEAR A BASE

Here’s an example of a SPEED MATH shortcut for CUBING 4-DIGIT NUMBERS NEAR A BASE: (Cub) NrB4 from the CUBING AND CUBE ROOTS category. ### When can I use this method?

For cubing any 4-digit numbers.

The number can be either < or > a Base number.

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PLE2BFBA789EE08F68″] Download Practice sheet for CUBING 4-DIGIT NUMBERS NEAR A BASE

### Notes –

1. When selecting a Base number, prefer a number that is near the number to be squared as well as it should be easy to multiply with (prefer round numbers).
2. This method uses the concept (B + a)3 = [(B + 3a) B2] + [(3a2) B] + [a3], where ‘(B + a)’ is the number to be squared, ‘B’ is the Base number and ‘a’ is the difference.
3. Whenever the number is more than the Base number, the difference is written as positive (+ve).
4. Whenever the number is less than Base Number, the difference is written as negative (-ve).

### Related Shortcuts –

[contentblock id=speedmath-blockquote]

Categories

## [Speed Math] CUBING 3-DIGIT NUMBERS NEAR A BASE

Here’s an example of a SPEED MATH shortcut for CUBING 3-DIGIT NUMBERS NEAR A BASE: (Cub) NrB3 from the CUBING AND CUBE ROOTS category. ### When can I use this method?

For cubing any 3-digit numbers.

The number can be either < or > a Base number.

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PLE8FC126E9A5F3FCA”] Download Practice sheet for CUBING 3-DIGIT NUMBERS NEAR A BASE

### Notes –

1. When selecting a Base number, prefer a number that is near the number to be squared as well as it should be easy to multiply with (prefer round numbers).
2. This method uses the concept (B + a)3 = [(B + 3a) B2] + [(3a2) B] + [a3], where ‘(B + a)’ is the number to be squared, ‘B’ is the Base number and ‘a’ is the difference.
3. Whenever the number is more than the Base number, the difference is written as positive (+ve).
4. Whenever the number is less than Base Number, the difference is written as negative (-ve).

### Related Shortcuts –

[contentblock id=speedmath-blockquote]

Categories

## [Speed Math] CUBING 2-DIGIT NUMBERS NEAR A BASE

Here’s an example of a SPEED MATH shortcut for CUBING 2-DIGIT NUMBERS NEAR A BASE: (Cub) NrB2 from the CUBING AND CUBE ROOTS category. ### When can I use this method?

For cubing any 2-digit numbers.

The number can be either < or > a Base number.

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PL476A902BD5FFC549″] Download Practice sheet for CUBING 2-DIGIT NUMBERS NEAR A BASE

### Notes –

1. When selecting a Base number, prefer a number that is near the number to be squared as well as it should be easy to multiply with (prefer round numbers).
2. This method uses the concept (B + a)3 = [(B + 3a) B2] + [(3a2) B] + [a3], where ‘(B + a)’ is the number to be squared, ‘B’ is the Base number and ‘a’ is the difference.
3. Whenever the number is more than the Base number, the difference is written as positive (+ve).
4. Whenever the number is less than Base Number, the difference is written as negative (-ve).

### Related Shortcuts –

[contentblock id=speedmath-blockquote]

Categories

## [Speed Math] CUBING NUMBERS NEAR 1000

Here’s an example of a SPEED MATH shortcut for CUBING NUMBERS NEAR 1000 : (Cub) Nr1000 from the CUBING AND CUBE ROOTS category. ### When can I use this method?

For cubing numbers near 1000.

The number can be either < or > 1000.

One can use this method to cube numbers away from 1000 as long as it is comfortable to cube the difference portions.

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PL08F13F2F44EC0CA7″] Download Practice sheet for CUBING NUMBERS NEAR 1000

### Notes –

1. This method uses the concept (1000 + a)3 = [(1000 + 3a) 10002] + [(3a2) 1000] + [a3], where ‘(1000 + a)’ is the number near 1000 and ‘a’ is the difference.
2. Whenever the number is more than 1000, the difference is written as positive (+ve).
3. Whenever the number is less than 1000, the difference is written as negative (-ve).

### Related Shortcuts –

[contentblock id=speedmath-blockquote]

Categories

## [Speed Math] CUBING NUMBERS NEAR 100

Here’s an example of a SPEED MATH shortcut for CUBING NUMBERS NEAR 100 : (Cub) Nr100 from the CUBING AND CUBE ROOTS category. ### When can I use this method?

For cubing numbers near 100.

The number can be either < or > 100.

One can use this method to cube numbers away from 100 as long as it is comfortable to cube the difference portions.

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PL421595DDA3027B92″] Download Practice sheet for CUBING NUMBERS NEAR 100

### Notes –

1. This method uses the concept (100 + a)3 = [(100 + 3a) 1002] + [(3a2) 100] + [a3], where ‘(100 + a)’ is the number near 100 and ‘a’ is the difference.
2. Whenever the number is more than 100, the difference is written as positive (+ve).
3. Whenever the number is less than 100, the difference is written as negative (-ve).

### Related Shortcuts –

[contentblock id=speedmath-blockquote]

Categories

## [Speed Math] CUBING NUMBERS NEAR 10

Here’s an example of a SPEED MATH shortcut for CUBING NUMBERS NEAR 10 : (Cub) Nr10 from the CUBING AND CUBE ROOTS category. ### When can I use this method?

For cubing numbers near 10.

The number can be either < or > 10.

One can use this method to cube numbers away from 10 as long as it is comfortable to cube the difference portions.

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PL52D2B8140D789547″] Download Practice sheet for CUBING NUMBERS NEAR 10

### Notes –

1. This method uses the concept (10 + a)3 = [(10 + 3a) 102] + [(3a2) 10] + [a3], where ‘(10 + a)’ is the number near 10 and ‘a’ is the difference.
2. Whenever the number is more than 10, the difference is written as positive (+ve).
3. Whenever the number is less than 10, the difference is written as negative (-ve).

### Related Shortcuts –

[contentblock id=speedmath-blockquote]

Categories

## [Speed Math] CUBING 2-DIGIT NUMBER

Here’s an example of a SPEED MATH shortcut for CUBING 2-DIGIT NUMBER : (Cub) 2D from the CUBING AND CUBE ROOTS category. ### When can I use this method?

For cubing any 2 digit number.

[starrater tpl=10]

[tubepress mode=”playlist” playlistValue=”PL1803D2A3F9E04050″] Download Practice sheet for CUBING 2-DIGIT NUMBER