Categories
Cubing 4-digit Numbers near a Base Cubing and Cube Roots Speed Math

[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.

Cubing 4-digit Numbers near a Base

When can I use this method?

For cubing any 4-digit numbers.

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

[contentblock id=google-adsense-post]

[starrater tpl=10]

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

[contentblock id=google-adsense-post]

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 –

Cubing Numbers near 10: (Cub) Nr10
Cubing Numbers near 100: (Cub) Nr100
Cubing Numbers near 1000: (Cub) Nr1000
Cubing 2-digit Numbers near a Base: (Cub) NrB2
Cubing 3-digit Numbers near a Base: (Cub) NrB3

[contentblock id=speedmath-blockquote]

Categories
Cubing 3-digit Numbers near a Base Cubing and Cube Roots Speed Math

[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.

Cubing 3-digit Numbers near a Base

When can I use this method?

For cubing any 3-digit numbers.

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

[contentblock id=google-adsense-post]

[starrater tpl=10]

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

[contentblock id=google-adsense-post]

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 –

Cubing Numbers near 10: (Cub) Nr10
Cubing Numbers near 100: (Cub) Nr100
Cubing Numbers near 1000: (Cub) Nr1000
Cubing 2-digit Numbers near a Base: (Cub) NrB2
Cubing 4-digit Numbers near a Base: (Cub) NrB4

[contentblock id=speedmath-blockquote]

Categories
Cubing 2-digit Numbers near a Base Cubing and Cube Roots Speed Math

[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.

Cubing 2-digit Numbers near a Base

When can I use this method?

For cubing any 2-digit numbers.

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

[contentblock id=google-adsense-post]

[starrater tpl=10]

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

[contentblock id=google-adsense-post]

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 –

Cubing Numbers near 10: (Cub) Nr10
Cubing Numbers near 100: (Cub) Nr100
Cubing Numbers near 1000: (Cub) Nr1000
Cubing 3-digit Numbers near a Base: (Cub) NrB3
Cubing 4-digit Numbers near a Base: (Cub) NrB4

[contentblock id=speedmath-blockquote]

Categories
Cubing and Cube Roots Cubing Numbers near 1000 Speed Math

[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.

Cubing Numbers near 1000

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.

[contentblock id=google-adsense-post]

[starrater tpl=10]

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

[contentblock id=google-adsense-post]

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 –

Cubing Numbers near 10: (Cub) Nr10
Cubing Numbers near 100: (Cub) Nr100
Cubing 2-digit Numbers near a Base: (Cub) NrB2
Cubing 3-digit Numbers near a Base: (Cub) NrB3
Cubing 4-digit Numbers near a Base: (Cub) NrB4

[contentblock id=speedmath-blockquote]

Categories
Cubing and Cube Roots Cubing Numbers near 100 Speed Math

[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.

Cubing Numbers near 100

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.

[contentblock id=google-adsense-post]

[starrater tpl=10]

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

[contentblock id=google-adsense-post]

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 –

Cubing Numbers near 10: (Cub) Nr10
Cubing Numbers near 1000: (Cub) Nr1000
Cubing 2-digit Numbers near a Base: (Cub) NrB2
Cubing 3-digit Numbers near a Base: (Cub) NrB3
Cubing 4-digit Numbers near a Base: (Cub) NrB4

[contentblock id=speedmath-blockquote]

Categories
Cubing and Cube Roots Cubing Numbers near 10 Speed Math

[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.

Cubing Numbers near 10

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.

[contentblock id=google-adsense-post]

[starrater tpl=10]

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

[contentblock id=google-adsense-post]

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 –

Cubing Numbers near 100: (Cub) Nr100
Cubing Numbers near 1000: (Cub) Nr1000
Cubing 2-digit Numbers near a Base: (Cub) NrB2
Cubing 3-digit Numbers near a Base: (Cub) NrB3
Cubing 4-digit Numbers near a Base: (Cub) NrB4

[contentblock id=speedmath-blockquote]

Categories
Cubing 2-digit Number Cubing and Cube Roots Speed Math

[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.

Cubing 2-digit Number

When can I use this method?

For cubing any 2 digit number.

[contentblock id=google-adsense-post]

[starrater tpl=10]

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

[contentblock id=google-adsense-post]

Notes –

  1. Notice the way the individual values are added.
  2. This method uses the concept of (a + b)3 = a3 + 3a2b + 3ab2 + b3

Related Shortcuts –

None

[contentblock id=speedmath-blockquote]