Leaderboard
Malaysia
Malaysia
Worldwide
Rank
Level
1
ongzz
Johor
98
2
User
Selangor
97
3
User
Sarawak
94
6
Singapore Math Academy
Wilayah Persekutuan Kuala Lumpur
92
7
Teik seam
Selangor
91
8
User
Selangor
88
9
User
Selangor
88
10
Teow Sin Wei
Kedah
86
12
Nikolas Adiprasetya
Selangor
85
13
User
Kedah
84
15
Kelly Chin KW
Selangor
81
16
User
Sarawak
80
18
Bryan Gan
Selangor
76
19
User
Selangor
75
21
User
Selangor
73
23
hewhew
Johor
70
29
User
Selangor
65
31
User
Kedah
63
32
Muhammad Ammar
Selangor
63
33
User
Pahang
61
35
User
Selangor
60
37
User
Pulau Pinang
58
40
User
Selangor
56
41
User
Selangor
54
49
User
Selangor
49
51
User
Selangor
48
53
Isaac Lim
Selangor
48
57
User
Pulau Pinang
44
58
User
Selangor
44
59
User
Selangor
44
60
User
Selangor
44
62
User
Selangor
43
66
User
Selangor
42
69
Kear Kyii Wong
Selangor
41
71
User
Selangor
40
73
User
Selangor
39
74
User
Selangor
39
77
User
Selangor
38
79
Matthew Ong
Johor
38
82
User
Selangor
37
83
User
Selangor
37
84
User
Selangor
37
86
Ng yinzhi
Selangor
37
87
User
Selangor
36
89
User
Selangor
36
93
User
Selangor
35
94
User
Selangor
35
95
User
Selangor
35
98
User
Kedah
34
100
User
Selangor
34
101
Sze Jia
Selangor
34
102
User
Johor
34
103
User
Selangor
34
104
User
Selangor
34
107
User
Selangor
32
111
User
Selangor
32
113
User
Selangor
31
114
User
Johor
31
115
User
Selangor
31
116
User
Selangor
31
117
User
Sarawak
31
118
JaclynY
Perak
30
119
erik sonny
Kelantan
30
120
User
Selangor
30
121
User
Sarawak
30
122
User
Selangor
29
123
User
Selangor
29
124
User
Selangor
29
125
User
Pahang
29
126
User
Selangor
28
130
User
Selangor
27
131
User
Johor
27
133
User
Selangor
27
141
NanoNanoNano
Selangor
26
142
Sindhu Rajendran@vejendran
Selangor
26
145
Nishita Deverapalli
Sabah
26
147
User
Terengganu
26
151
User
Selangor
25
152
User
Selangor
25
154
User
Selangor
24
155
User
Selangor
24
157
User
Selangor
24
158
User
Selangor
24
159
User
Johor
23
160
User
Selangor
23
161
Rio Fukuda
Pulau Pinang
23
162
User
Selangor
23
164
User
Selangor
23
165
User
Sabah
23
166
Suyinn Lee
Selangor
22
167
User
Selangor
22
169
User
Selangor
22
170
User
Sarawak
22
171
User
Perak
22
172
User
Selangor
22
174
Kazuki Kiddo
Selangor
21
175
User
Sarawak
21
176
User
Johor
21
178
User
Selangor
21
179
User
Selangor
21
184
User
Selangor
20
186
User
Selangor
20
190
User
Selangor
20
191
User
Johor
20
192
User
Selangor
20
194
User
Selangor
19
195
User
Johor
19
196
User
Selangor
19
197
User
Selangor
19
198
User
Selangor
19
199
User
Selangor
19
200
User
Selangor
19
203
User
Selangor
18
205
User
Selangor
18
208
User
Pahang
18
209
User
Selangor
18
211
Sethu Rajeswari
Negeri Sembilan
18
213
User
Pahang
17
214
User
Selangor
17
222
User
Selangor
17
224
User
Sarawak
17
227
User
Pahang
16
229
User
Selangor
16
232
User
Sarawak
16
233
Bryan SymTdm MC
Sabah
16
234
User
Selangor
16
235
User
Selangor
16
236
User
Selangor
16
240
User
Selangor
15
242
User
Selangor
15
244
User
Johor
15
246
User
Selangor
15
250
User
Selangor
15
251
User
Selangor
15
252
User
Perak
14
254
User
Melaka
14
255
User
Selangor
14
257
User
Sabah
14
258
User
Johor
14
260
User
Selangor
14
261
User
Melaka
14
263
User
Selangor
14
265
Felice Wong
Selangor
14
266
User
Melaka
13
268
Shinu
Selangor
13
269
User
Melaka
13
270
User
Selangor
13
273
User
Johor
13
274
User
Selangor
12
275
User
Selangor
12
277
User
Johor
12
278
User
Johor
12
282
User
Selangor
12
283
User
Selangor
12
285
User
Pulau Pinang
12
286
User
Kedah
12
289
User
Selangor
12
290
User
Selangor
12
292
User
Selangor
11
293
User
Selangor
11
294
User
Sarawak
11
296
User
Selangor
11
297
User
Sabah
11
299
User
Selangor
11
300
User
Johor
11
301
User
Selangor
11
302
User
Kedah
11
305
User
Selangor
11
306
User
Johor
11
310
Zhuan Yi
Johor
10
311
User
Johor
10
312
User
Johor
10
313
User
Johor
10
314
Zen Yyi
Selangor
10
315
User
Johor
10
316
Zhuan Yi
Johor
10
317
User
Johor
10
318
User
Johor
10
319
Bobsac
Johor
10
321
User
Johor
10
325
User
Selangor
10
326
User
Melaka
10
327
User
Selangor
10
328
User
Selangor
10
329
User
Selangor
10
330
User
Johor
10
331
User
Selangor
10
335
User
Perak
10
336
User
Selangor
10
338
Akif Rabbani
Selangor
10
339
User
Terengganu
10
341
User
Pulau Pinang
10
342
Nirmala Devi
Selangor
10
344
User
Johor
9
345
User
Johor
9
347
User
Selangor
9
348
User
Selangor
9
349
User
Johor
9
353
User
Perak
9
356
User
Selangor
9
358
User
Selangor
9
359
User
Selangor
9
363
User
Selangor
9
364
User
Selangor
9
365
User
Pulau Pinang
9
366
User
Selangor
9
368
User
Johor
8
369
yejun
Johor
8
370
User
Johor
8
372
User
Selangor
8
373
User
Selangor
8
374
User
Johor
8
375
User
Sabah
8
376
User
Johor
8
377
User
Johor
8
378
supermanlol
Johor
8
379
isabel
Johor
8
382
User
Selangor
8
383
User
Selangor
8
384
User
Selangor
8
385
Aaryan
Selangor
8
386
User
Selangor
8
387
User
Selangor
8
388
User
Selangor
8
391
User
Sarawak
8
394
User
Selangor
8
395
User
Selangor
8
396
User
Selangor
8
401
User
Selangor
7
403
User
Selangor
7
404
User
Johor
7
405
User
Johor
7
406
User
Johor
7
407
User
Johor
7
408
User
Johor
7
411
User
Selangor
7
412
User
Selangor
7
413
User
Selangor
7
414
User
Selangor
7
422
User
Selangor
7
424
User
Selangor
7
427
User
Perak
6
428
User
Perak
6
430
User
Selangor
6
431
User
Selangor
6
432
User
Johor
6
433
Zhuan Yi
Johor
6
434
User
Johor
6
435
User
Johor
6
436
User
Johor
6
439
User
Sarawak
6
440
Anna Wood
Selangor
6
442
User
Johor
6
443
User
Pulau Pinang
6
445
User
Selangor
6
446
User
Selangor
6
447
User
Selangor
6
449
User
Selangor
6
453
User
Selangor
6
454
User
Sabah
6
455
User
Sabah
5
456
User
Johor
5
458
User
Selangor
5
459
User
Johor
5
460
User
Johor
5
462
User
Johor
5
463
User
Johor
5
464
User
Johor
5
465
User
Selangor
5
466
User
Selangor
5
467
User
Selangor
5
469
User
Selangor
5
470
User
Selangor
5
471
User
Selangor
5
472
User
Selangor
5
473
User
Selangor
5
474
User
Selangor
5
475
User
Selangor
5
476
User
Selangor
5
477
User
Selangor
5
479
User
Selangor
5
481
User
Selangor
5
483
Kanagasegaran Supramaniam
Pulau Pinang
5
484
User
Selangor
5
485
User
Selangor
5
488
User
Selangor
5
490
User
Selangor
5
491
User
Perak
5
492
User
Sarawak
5
496
User
Selangor
5
499
User
Selangor
5
500
User
Johor
4
501
User
Johor
4
502
User
Johor
4
503
User
Johor
4
505
User
Selangor
4
506
User
Selangor
4
507
User
Selangor
4
508
User
Selangor
4
510
User
Johor
4
511
User
Johor
4
512
eva the poopy pants
Johor
4
513
User
Selangor
4
514
User
Pulau Pinang
4
515
User
Johor
4
516
User
Johor
4
517
User
Johor
4
518
User
Melaka
4
519
User
Johor
4
520
User
Johor
4
521
User
Johor
4
522
User
Johor
4
523
User
Johor
4
524
User
Selangor
4
525
User
Selangor
4
528
User
Selangor
4
529
Mikael Adrian Adrin Shafil
Selangor
4
530
User
Selangor
4
531
User
Selangor
4
534
User
Selangor
4
535
User
Selangor
4
539
User
Selangor
4
541
User
Melaka
4
544
User
Kedah
4
546
User
Selangor
4
550
User
Selangor
4
552
User
Selangor
4
553
User
Selangor
4
555
emily lee yi hsuen
Selangor
4
556
Lai Yu Xuan
Selangor
4
558
methw
Johor
3
559
User
Johor
3
560
arshan
Johor
3
561
User
Johor
3
562
User
Selangor
3
563
User
Sarawak
3
564
User
Johor
3
565
User
Johor
3
566
User
Johor
3
567
User
Selangor
3
568
anmol sahu
Johor
3
569
User
Johor
3
570
User
Johor
3
571
User
Johor
3
572
User
Johor
3
573
User
Johor
3
574
User
Johor
3
575
User
Johor
3
576
User
Johor
3
577
User
Perak
3
578
User
Johor
3
579
Eva chong
Johor
3
580
User
Johor
3
581
User
Johor
3
582
ye jun
Johor
3
583
User
Johor
3
584
User
Johor
3
588
User
Melaka
3
589
User
Selangor
3
590
User
Selangor
3
591
projek peribadi
Perak
3
592
User
Selangor
3
596
User
Johor
3
601
User
Johor
3
609
User
Selangor
3
611
User
Selangor
3
612
User
Sabah
3
615
User
Sarawak
2
618
User
Johor
2
619
User
Johor
2
620
User
Johor
2
621
User
Johor
2
622
User
Johor
2
623
richmond
Johor
2
624
anmol sahu
Johor
2
625
ETHAN
Johor
2
626
User
Johor
2
627
User
Johor
2
628
User
Johor
2
629
User
Johor
2
630
User
Johor
2
631
User
Johor
2
633
User
Johor
2
634
User
Johor
2
635
User
Johor
2
636
ET
Johor
2
637
User
Johor
2
638
User
Johor
2
639
User
Johor
2
640
User
Johor
2
641
Lily The Savage
Johor
2
642
User
Johor
2
643
User
Johor
2
644
User
Johor
2
645
User
Johor
2
646
User
Johor
2
647
User
Johor
2
648
User
Johor
2
649
User
Johor
2
650
User
Johor
2
651
anmol sahu
Johor
2
652
User
Selangor
2
655
User
Sarawak
2
657
User
Pulau Pinang
2
660
Luji yufgp
Selangor
2
661
User
Selangor
2
663
User
Selangor
2
664
User
Pulau Pinang
2
666
User
Selangor
2
667
User
Sarawak
2
669
User
Selangor
2
670
User
Selangor
2
672
User
Sarawak
2
676
User
Selangor
2
677
User
Selangor
2
679
User
Selangor
2
682
User
Sarawak
2
685
User
Sarawak
2
687
User
Johor
2
695
User
Selangor
2
696
User
Pulau Pinang
2
699
User
Perak
2
700
Bernie Constantino
Kedah
2
702
User
Kelantan
2
704
User
Sabah
2
705
User
Johor
2
706
User
Sarawak
2
707
User
Selangor
2
709
User
Selangor
2
710
User
Selangor
2
714
User
Selangor
1
717
User
Perak
1
719
User
Johor
1
720
User
Selangor
1
721
User
Johor
1
722
Cameron
Johor
1
723
isabel
Johor
1
724
User
Johor
1
726
User
Johor
1
727
User
Johor
1
728
User
Johor
1
730
User
Johor
1
731
User
Johor
1
732
User
Johor
1
733
Bob
Johor
1
734
User
Johor
1
735
User
Johor
1
736
User
Johor
1
737
User
Johor
1
738
Adam LaJoy
Johor
1
739
User
Selangor
1
742
User
Pulau Pinang
1
743
User
Selangor
1
746
User
Johor
1
747
User
Selangor
1
748
User
Selangor
1
750
User
Pulau Pinang
1
753
User
Johor
1
754
yolo duuddudude
Selangor
1
755
User
Selangor
1
756
User
Selangor
1
759
User
Selangor
1
760
User
Sarawak
1
761
User
Selangor
1
764
User
Selangor
1
766
User
Johor
1
767
User
Johor
1
768
User
Pulau Pinang
1
769
User
Sarawak
1
770
User
Sabah
1
772
User
Perak
1
773
User
Sabah
1
774
User
Selangor
1
777
User
Selangor
1
779
User
Selangor
1
781
User
Selangor
1
782
Nicki Coombs
Selangor
1
784
roschanraj sriraj
Pulau Pinang
1
785
Shamsulazhar
Selangor
1
786
Bani
Selangor
1

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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 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, 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.


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