Latin America
Worldwide
Latin America
Rank
Level
1
Emily Castillo Martínez
94
2
Wagner Jose Barrios Tejeda
94
3
Eduardo Mora
93
4
Ariel Pedernera
82
5
Milan van de Meeberg
81
6
Unter
80
7
dotop
79
8
tony
78
9
bryan valdez calderon
78
10
70
11
hellenjoanna
70
12
Eduardo Escamilla
70
13
LaBoya
69
14
Chuusei
68
15
67
16
Kiomy Garcia Aguilar
67
17
J L
67
18
Josue Sebastian Mendez Mendoza
67
19
Brian Moret Ferreira da Silva
66
20
Fabrício Santos
66
21
Sebastian Guevara
64
22
Jhonne Kleyton
64
23
Franco Melon
64
24
Rodrigo Pariona Munguia
63
25
Paulo Cezar
61
26
Marcos Cabral
59
27
Filipe de Castro
58
28
Fernanda
58
29
57
30
56
32
Realrova
56
33
Karim Chaya
56
34
ackuhl2@gmail.com
56
35
Ana Carolina Gramajo Quijivix
55
36
German
55
37
Josephine Rua
54
38
52
39
52
40
Leonardo Sonehara
51
41
50
42
Gabriela O'Farrill
50
43
Adriana Maria Castillo Perez
49
45
Dosmados Ètres
49
46
William Ahern Rognoni
49
47
Jose Antonio Quiñonez Garcia
48
48
Felipe de Paula
48
49
Jorge Rolando Chávez Mackay
48
51
Gustavo Ramires
48
52
47
53
Milhouse Bugado
47
54
Maynor Vinicio Cabrera Ronquillo
47
55
Matheus Rech
47
56
Francisco Martín
47
57
Nicolas Acero
47
58
Marcelo Sg
46
59
Rarv
46
60
Lenhart Simon
46
61
DN
46
62
46
63
Fernando Cancinos
46
64
45
65
danaeavg@hotmail.com
45
66
44
67
44
68
Nicolás Moreno
44
69
43
70
Viviana Cardenas
43
71
Gustavo Ernesto Morales Acevedo
43
72
Mynor Ivan Morales Escobedo
43
73
David R. Parrish B.
43
75
42
76
xzy
42
77
Daniel Lee
42
78
42
79
Luã Santilli
42
80
Matheus Petucco
42
81
42
83
Santi Vigi
41
84
Edgar Gallegos
41
85
Daniela Alvarado Leonardo
41
86
Angelica Munoz
41
87
Kauê Godoy
41
88
40
89
40
90
40
91
40
92
nacho pacheco
40
93
F gelo
40
94
Bianca Renata Calderon Caravantes
40
95
40
96
Paulina Diaz De La Paz
39
97
39
98
dotope
39
99
39
100
Taquion
39
101
39
102
Fivefingersintheface
39
103
Monica Alejandra Salvatierra Chacon
39
105
Ramiro Javier López
38
106
Marivi
38
108
Bruno Shirasuna
38
110
Sávio Branco
37
111
Luis Aquino
37
112
37
113
Saff
37
114
Leydan Sánchez
37
115
37
118
36
119
36
120
Daniel Zond
36
121
36
122
Hu Al
36
124
Joaquin Morales Castro
36
125
36
126
36
127
Camila
35
128
35
129
Diego Alejandro Henkle Martinez
35
130
Daniela Torres Barrios
35
131
35
132
Marina Bastos
35
133
Michelle
35
135
Vandré
35
136
Eric Barreto
35
137
Fernando
34
138
Juan Carlos Ortiz Garcia
34
139
Derick Delva de Leon
34
142
34
144
Patricio Lorqui
33
145
33
146
33
147
BrunoP
33
148
Alejandro Piñeros
33
149
Andrés A.
32
150
P S
32
151
bruno couto
32
152
David Rodrigo Gil Valdez
32
155
Tiago
32
156
31
157
Carlos Casas
31
158
Santiago Palacino
31
159
31
160
Jose Andres Sanchez Paniagua
31
161
Felipe Gonzalez
31
162
31
163
Heberson Alejandro Kim Fajardo
31
164
Nicolás Fabián Calabró
30
165
30
166
Nat Sar
30
168
Luis Ramos
30
171
30
172
30
173
Gabriel
30
174
30
176
30
177
Fernando Gomes
30
178
29
179
29
180
29
181
ger schettini
29
183
29
184
29
185
Daniela Fernanda Lopez Velasquez
29
186
29
187
29
188
29
189
José Freire
29
190
Nicolás Tarazona Loaysa
29
191
Josue Chicatti
29
192
Cortes el Conquistador
28
194
Vinicius Nascimento
28
195
Pete Nelson
28
196
Murius
28
197
28
198
28
199
Jose Pablo Orellana Medrano
28
200
Brenda Gonzalez
28
201
Andrés Paz
28
202
28
204
28
205
28
207
pablo vittar
27
209
Samuel Kirschner
27
210
Luis Ardila
27
211
27
213
27
214
Julio Andrés Arriaga Rangel
27
215
27
216
Douglas Santos
27
217
Gabriel
27
218
27
220
27
221
Leonardo Almeida
27
222
Yash Sharma
27
224
27
225
26
226
26
227
Andres Muñoz Castañeda
26
228
26
229
sdoekwpekdwpkfpwe
26
230
John Lea
26
231
Maria Renee Diaz Salguero
26
232
26
233
26
235
26
236
26
237
Daniel Javier Barrios Lopez
26
238
26
239
26
240
26
241
Julio Cesar Quiñonez Garcia
25
242
Victor Alejandro Saravia Hernandez
25
243
25
244
25
245
Alvaro Villarreal
25
247
25
248
25
249
25
250
25
251
Lyfaenia
25
252
25
253
25
255
Naiane Pontes
25
257
Laura Bermudez
25
258
25
259
25
261
ISAAC ALEJANDRO JANICA PINEROS
25
263
Arturo Quevedo
24
264
Nathalia Burgos Roldan
24
266
24
267
24
268
Poquem
24
269
24
270
Tomas Astudillo
24
271
Rodrigo Joaquin Gramajo Avila
24
272
Avrock Zoxa
24
274
Jose Pablo Mendoza Cabrera
24
276
Ed McWilliams
24
277
23
278
Paulina Hoyos Restrepo
23
279
Luis Vazquez
23
280
Jose salvo
23
283
23
284
23
285
Daniel Aguirre
23
287
23
288
Gustavo Henrik
23
289
Pablo Andre Alvarado Leonardo
23
290
Andres Alejandro Xicara de Paz
23
291
23
292
Javier Ceballos Palacios
23
293
23
294
Leonel Estuardo Menchu Marquez
23
295
Diego Moya
23
296
23
297
Volk
22
299
gcorrea
22
300
22
301
22
302
Paul David Becerra Fajardo
22
303
Hugo Lunel
22
304
Jessica Alejandra Escriba Romero
22
305
22
306
Axel Bautista
22
307
Juliano Negri
22
308
22
309
Osman Contreras
22
310
Nicte
22
312
21
313
Daniel Céspedes
21
314
Lyfaenia
21
316
21
318
21
319
21
320
21
321
Jong Yeon Kim Kim
21
322
21
323
Gian Fiorino
21
324
21
325
21
327
21
328
21
329
felipe
21
330
Jose Andres Auyon Cobar
21
331
21
332
Diego Andree Santizo Lopez
21
333
21
334
Gerardo Javier Arturo Robelo Avila
21
336
Fabio Jose Solares Gomez
21
337
20
339
Sebastian Barberena Pulido
20
340
20
341
Marcela Vela Melgar
20
342
20
343
Nicolas Gama Coelho Rodrigues
20
344
20
345
Jose Rodrigo Orozco Paiz
20
346
20
347
20
348
20
349
20
350
Chan Mi Kim
20
351
Loust 055
20
352
20
354
WebWarrior
20
355
Valentina Boburg Cotton
20
356
20
357
20
359
20
361
20
364
Mia Olazabal
20
365
Santiago Alviar
20
366
Yo
20
367
19
368
19
369
Roderiko
19
370
19
371
19
372
Hildemar
19
373
19
375
Saul Villa
19
376
19
377
Arsene1412
19
378
YyGaNz
19
379
Paula Ximena Ramirez Palma
19
380
19
382
19
383
Johann
19
384
Tiago Teodoro
19
386
19
387
19
388
Guido Dipietro
19
389
frnandoh
19
391
18
392
lucas teles
18
393
chavo
18
394
Jorge Tarazona
18
396
ANDREA DOMINGUEZ
18
397
Kateryn Yemima Rodriguez Gonzalez
18
398
Agustín Díaz
18
399
18
400
18
402
18
404
18
406
17
407
Victoria Costa Paz
17
408
Cecilia Germaine Wehling Paredes
17
409
17
411
17
412
17
413
HRP is the BOSS
17
415
Rosemberg Santos
17
416
17
418
ivan cast.
17
419
17
420
Alexis P. Marrocco
17
424
17
426
17
428
André Shevantes
17
429
17
431
17
432
17
433
17
434
17
435
Eduardo Freire
17
436
17
437
16
438
Josue Hernandez Aguilar
16
439
16
442
16
443
16
444
16
445
16
446
16
447
Adriana Alejandra Rivera Sandoval
16
448
16
450
veronica amaya
16
452
16
453
16
454
Nathan Walter
16
455
Henry Ochaeta Zetina
16
458
16
459
Marcos Henrique
16
460
Gerardo Navarrete
16
461
Sara Hernández
16
464
16
465
16
466
16
469
Martin jimenes guzman
16
470
Adan O
15
471
15
472
Giuliana Comandari Norman
15
473
15
476
15
477
Juan Oscar del Cid Molina
15
478
Carlos Roberto Tavico Zacarias
15
479
15
480
Wendy Rocio Borrayo Muñoz
15
481
Axel Rodrigo Coronado Leal
15
482
15
483
Maria Andrea Rivas Ordoñez
15
485
15
487
Andres Velasquez Alvarez
15
489
15
490
15
492
Anna Paula Santa Cruz Cerna
15
493
15
494
15
495
15
497
15
499
15
500
Dario Alfredo Castellanos Aldana
15

Free

Free basic access

Login Optional

Progress saved automatically

Students

Works great in classrooms

25,000,000
Questions answered
100,000
Users
100
Difficulty levels

Cross-Platform

Use any operating system with Chrome, Safari, or Firefox

A Web App for Mathematics Training

Do you want to be fast at mental math? Many people do, but the options for doing the necessary exercises are simply too cumbersome for all but the most dedicated of trainees. In physical fitness, many people are interested in training their bodies but allocating the time, energy, and money for it is a significant obstacle. Likewise, lugging around books and whatnot for math practice is a threshold that just doesn't meet the standards of modern life.

Training yourself to be skilled at mental math needs to be quick and convenient. mathtrainer.org is a web app that works in your browser rather than a program you have to download and install on your computer or phone. This allows users to try and use the app without having to install new software. As a web app, updates are also much simpler. There is no need to download endless updates—the website will always be the most current version.

You can access a web app from any device connected to the internet and equipped with a web browser, including smartphones, tablets, and desktop computers. Moreover, you are free to use whichever browser you prefer, including Google Chrome, Safari, Firefox, and others. Google Chrome is the recommended browser for the best maths training since it tends to lead the pack in supporting the latest web technologies.

Math Trainer is designed to offer a similar experience regardless of what you’re using to access it, whether it be Android, iOS, Windows, or another operating system. Though an on-screen touch keyboard will appear on mobile devices, you may prefer to use the app on a desktop with a keyboard. Hopefully the advantages of a web app for convenient mathematics training are apparent.

Another part of making the app easy to use is eliminating the need for signing up and logging in. Users can get started with their math training as soon as they click the start button on this page. After progressing to higher levels in the app, your progress is automatically saved so long as your return to the site through the same browser.


What's a Mental Math Tip?

A mental math tip is a sequence of steps that can be taken to solve a math problem in your head. Click the arrow below to see an example for the following problem:

÷
984
3
328

A tip like this one is available for every problem in Math Trainer, so there's always help if you get stuck. With enough math practice, you'll be able to predict what the tips will say—you'll have learned mental math!


Get Better at Mental Math

The ability to quickly perform mental calculations offers advantages in certain circumstances. But even without applications, getting better at mental math is a great way to stimulate one’s mind. It develops better number sense and intuition for quantifying the world around us. Practicing mental calculation will strengthen your foundation for learning more advanced maths topics.

Nonetheless, the tangible benefits of improving at mental math are many. It is certainly expected that educated people are able to do simple arithmetic without having to pull out a calculator. An inability to do so may reflect poorly on you, while being well-practiced in mental calculation will leave your contemporaries impressed. In many scientific and technical circles, mental math ability is even more highly regarded.

For students, mental calculation speed will often have a direct impact on math and science test scores. At all grade levels, it is not sufficient to know how to solve math problems when tests have a time limit on them. The highest-scoring test takers are able to answer questions both correctly and efficiently. Improving mental math skills will only benefit a student’s academic career.

Calculating the solution to an arithmetic problem in your head is often faster than pulling out a device to tell you the answer. For example, figuring out how much to tip a server at a restaurant is a straightforward arithmetic problem that many people are unable to perform without a calculator. By training your brain to solve basic math problems, you can save time in situations like these.

Mental math can also be relied upon when calculation devices are not available. Even with the conveniences of modern life, we occasionally find ourselves without access to our cell phones or other capable devices. A mind skilled in mental math is always available to you.

Finally, getting better at mental math enables a quick estimate and sanity check on results obtained from calculators. While computers are extremely reliable at solving math problems, there is always the risk of incorrectly inputting the problem to the computer. By getting better at mental mathematics, you will develop an intuition for whether the results of calculators make sense.

In fact, the ability to estimate is often sufficient to avoid using calculators altogether. While the use of computers is widespread, estimation is an increasingly valued skill in many industries. There are many situations where complex math will eventually be required, but a preliminary estimate is needed quickly. A major boost to productivity!


Use a Math Trainer

Mental math ability is a lot like physical fitness training. You may be out of shape in the beginning, but with diligent training you can and will improve. Initially you might not enjoy the exercise, but you will reap significant rewards for your effort. As you become more fit, you’ll begin to enjoy the activity much more. If you are serious about it, your mental calculation fitness could become a source of energy, galvanizing you to face the challenges of life with enthusiasm.

In physical training, you break down the fibers in your muscles during a workout session. Your muscles actually sustain tiny tears during resistance training exercises. While you rest afterwards, your body repairs the damage, rebuilding the fibers thicker and stronger.

A similar process is believed to occur for cognitive tasks. A 2016 study found "extensive evidence that brain-training interventions improve performance on the trained tasks".1 Therefore you can expect training your brain to answer mental math questions will lead to improved performance over time.

In the context of physical fitness, a "trainer" often refers to a trained professional who guides the workout and recovery process. Personal trainers are tasked with assessing a trainee's level of ability, prescribing an exercise regimen, and offering feedback as the training goes along. The word "trainer" could also refer to a system that automates the role of a personal trainer. Many aerobic exercise machines today offer interactive training programs with feedback and analysis of a user's performance.

A math trainer is needed for optimal math fitness. Like in physical fitness, the trainer should be compatible with users at a variety of skill levels and should guide them to the next level. It should give an accurate assessment of a user's strengths and weakness, as well as offer helpful feedback on where to focus one's efforts. Learning the ropes of mental maths with a math trainer should be a seamless, rewarding journey to ever-greater abilities.


Mental Calculation

Mental calculation, or mental math, is performing arithmetical calculations without the aid of tools or supplies. As opposed to using a calculator or pencil and paper, mental math is performed entirely in one’s head.

People use mental calculation when computation aides are not available, when it is faster to do so, or when they wish to practice math, show off, or participate in mental math competitions. Most people perform basic mental calculation using elementary arithmetic on a daily basis. An inability to calculate mentally is a serious obstacle to many common tasks.

In U.S. schools, mental calculation is taught only for the most elementary arithmetic, such as single-digit addition and multiplication of two numbers between 0 and 12. To solve addition problems involving multiple digits, you are taught to add columns of digits from right to left, carrying the tens digit if the column sum exceeds 9. For example, how would you approach this addition problem?

Example of two-digit
addition problem

If you were trained like many of us were, you’d add the right column to obtain 12. Since that’s two digits, you’d write the 2 under the right column and carry the 10 by writing a 1 above the left column. Finally, you’d add the two tens digits and the carried 1 to obtain the answer, 52.

To solve an addition problem mentally, it’s best to add the columns from left to right. In our example, you could add the tens digit of the second number, 30, to the first number, 14, to obtain 44. This is easier than the full problem because you’re just doing one mental calculation and tacking on the 4 from the 14 as the singles digit. Then you’d add the remaining ones digit of the second number, 8, to 44 to arrive at the answer, 52.

Which approach seems simpler to you? Can you do the first approach without pulling out a pencil and paper? It turns out the same advantages of left-to-right addition apply to much larger numbers as well. It’s unlikely that difficult addition problems can be solved right to left without needing to write it all out, which of course is more time consuming.

Mental math should be distinguished from the memorization of math facts such as multiplication tables. A foundation of memorized answers to simple math problems will make mental math easier, but performing maths in your head requires both memorized facts and the manipulation of numbers and operations to solve problems. This combination of skill and memory allows us to solve far more complex math questions than can be answered with readily-memorized math facts.

Many mental math tricks are specific to particular numbers or types of problems, usually dependent on the base of the number system used. In the decimal numeral system, for example, it is trivially easy to multiply by 10—just add a 0 to the end of the number. This mental math trick wouldn’t work in the hexadecimal numeral system, though, because the base is 16 instead of 10.

Therefore mental calculation is the ability to manipulate complex arithmetic problems in such a way that they can be resolved using simple memorized math facts.


Arithmetic

Arithmetic is the branch of mathematics concerning basic number operations: addition, subtraction, multiplication, and division. As kids, we are taught to do arithmetic because real-world math problems depend on a mastery of elementary arithmetic. Higher-level study of arithmetic and the integers, or whole numbers, is known as number theory.

Though the math kids initially study is arithmetic, the word is rarely used in this context anymore. Originally it comes from the Greek arithmos, meaning “number”. It has however been included in the “three Rs” of elementary Western education: reading, writing, and arithmetic.

There is evidence prehistoric humans were using arithmetic as hunter-gatherers. Archaeologists have uncovered a tally stick, believed to be over 20,000 years old, which may exhibit the earliest known sequences of prime numbers. An understanding of prime numbers, which are only divisible by themselves and the number 1, requires knowledge of the operation in arithmetic known as division.

From tally marks came base-10 numerals such as those used in Egypt over 5,000 years ago. Number systems based on 10 probably arose because humans have ten “digits” as fingers on their hands (or toes on their feet). A later advance in arithmetic was positional notation, which allowed the same symbols to represent different magnitudes depending on their position in the written number. These numeral systems allowed complex arithmetic to be communicated, recorded, and applied to the challenges faced by our ancestors.

The basic operation of arithmetic is addition. It combines two or more numbers into one, the sum of the terms. The terms can be added in any order, which is known as the commutative property of arithmetic. On a number line, the sum of two numbers is the total distance from zero covered by both numbers.

The inverse arithmetical operation of addition is subtraction. It finds the difference between two numbers. Subtraction is not commutative because the order of the numbers determines whether the answer is positive or negative. On a number line, the difference between two numbers is the distance between their positions.

A second basic operation of arithmetic is multiplication, which scales a number by another number. This second number is called a factor. Like addition, multiplication is commutative—you can change the order of the factors and still get the same answer. Multiplication on a number line can be viewed as adding the first number a total number of times equal to the second factor.

Finally, division is an arithmetical operation that is essentially the inverse of multiplication. Rather than scaling a number, it is divided into a number of pieces equal to the second number. Dividing by the number 0 is not defined in arithmetic because dividing something into zero pieces is impossible.

Basic arithmetic allows us to evaluate the answers to an unlimited number of mathematical expressions. Arithmetical expressions can be purely mathematical, as in 2 + 2, or they can represent quantities in the physical world, such as two items plus two more. Understanding the laws of arithmetic is tremendously powerful.


Privacy Policy