Mathematics and Mental Calculation

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Topic / Topic starter Replies Last postsort ascending
Karatsuba Method and Questions
by Husky22 » 1 September, 2015 - 11:49
2
by Kinma
5 September, 2015 - 14:26
Multiplication tables and 10-based numerical system
by Mod » 2 October, 2013 - 15:54
18
by Kinma
3 September, 2015 - 10:46
Remedial work?
by RobertFontaine » 10 June, 2015 - 11:38
3
by Nodas
24 July, 2015 - 13:28
History of Mental/Oral Proofs - Mental Mathematics ?
by RobertFontaine » 8 July, 2015 - 17:45
7
by RobertFontaine
11 July, 2015 - 16:06
Wife has decided I am a wingnut
by RobertFontaine » 4 July, 2015 - 06:01
4
by RobertFontaine
5 July, 2015 - 21:11
General discussion of mental maths
by The-Memoriser. » 12 August, 2013 - 15:25
26
by John
1 July, 2015 - 20:00
Mental Abacus
by A.Shadow » 17 September, 2014 - 12:19
8
by The-Memoriser.
30 June, 2015 - 19:54
Avoiding the carry
by Kinma » 27 August, 2014 - 05:02
2
by The-Memoriser.
30 June, 2015 - 19:49
Test equation editor
by RobertFontaine » 21 June, 2015 - 19:44
9
by The-Memoriser.
29 June, 2015 - 07:16
Annoying 9
by RobertFontaine » 16 June, 2015 - 10:03
20
by Kinma
26 June, 2015 - 09:13
Multiplication by 9
by RobertFontaine » 23 June, 2015 - 20:58
2
by Nodas
25 June, 2015 - 06:44
Remembering Logs...
by RobertFontaine » 18 June, 2015 - 12:31
2
by RobertFontaine
23 June, 2015 - 18:30
Another handy fact in squares
by RobertFontaine » 22 June, 2015 - 12:18
2
by Nodas
23 June, 2015 - 07:30
Triangles, Squares and Cubes more relationships
by RobertFontaine » 22 June, 2015 - 19:08
1
by Kinma
22 June, 2015 - 21:58
Using calculus to multiply integers
by RobertFontaine » 22 June, 2015 - 13:38
0
by RobertFontaine
22 June, 2015 - 13:38
Mental Calculation as a Visual Construct
by RobertFontaine » 17 June, 2015 - 11:40
4
by Kinma
18 June, 2015 - 01:30
A nice paper on Napier and Logarithms.
by RobertFontaine » 16 June, 2015 - 14:36
1
by Kinma
17 June, 2015 - 10:47
Nichomacus' Theorem - sum of cubes equal the sum squared.
by RobertFontaine » 16 June, 2015 - 11:55
0
by RobertFontaine
16 June, 2015 - 12:20
Multiplication tables - expanding to 20X20
by Kinma » 15 June, 2015 - 15:29
3
by Kinma
16 June, 2015 - 02:37
O... I.. C.. Doh... Another obvious epiphany
by RobertFontaine » 15 June, 2015 - 11:42
4
by Kinma
16 June, 2015 - 02:19
Squaring 3 digital number... More fun with squares
by RobertFontaine » 11 June, 2015 - 20:18
1
by RobertFontaine
14 June, 2015 - 15:27
Patterns in the last two digits of Squares... Dimensions and Geometry
by RobertFontaine » 12 June, 2015 - 12:19
1
by Kinma
14 June, 2015 - 14:20
How to divide with decimals using a soroban?
by ArsDenisov » 12 June, 2015 - 13:24
1
by Kinma
14 June, 2015 - 13:46
Good old article on mentally calculation of exponents
by RobertFontaine » 12 June, 2015 - 18:56
1
by Kinma
14 June, 2015 - 13:33
How to retain what you need to calculate?
by ArsDenisov » 13 June, 2015 - 04:24
1
by Kinma
14 June, 2015 - 12:03
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