Math, asked by ismailrzamaheraprave, 10 hours ago

what is the trick of learning table 21 in mathematics​

Answers

Answered by llXxarmygirlxXll
2

Answer:

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These tables or call as maths tables basically gives the values of repeated addition of a number. In the same way, the maths table of 21, gives repeated addition of number 21.

For example,

3 rows of 21 boys each gives the sum of 21 + 21 + 21 = 63. Therefore, the total number of boys is 63. Or we can also write it as, 3 x 21 = 63, where 3 is the number of rows and 21 is the number of boys standing in each row.

Table of 21

The multiplication table of 21 is very useful for higher classes, say from 9th to 12th, as the maths concepts for these classes have a little higher level than that of primary classes. Students, who have memorized the 21 times table can also easily memorize the later tables such as the table of 22, 23, 24, 25 so on till 30. Also, students or candidates, who are preparing to attempt the competitive exams like Bank Exams, CAT, MAT and other competitive exams which includes maths aptitude questions, can memorize the tables from 21 to 30 for quick calculations.

Table of 21

Maths Multiplication Table of 21

Let us draw the table of 21 from numbers 1 to 20 times.

21 x 1 = 21

21 x 2 = 42

21 x 3 = 63

21 x 4 = 84

21 x 5 = 105

21 x 6 = 126

21 x 7 = 147

21 x 8 = 168

21 x 9 = 189

21 x 10 = 210

21 x 11 = 231

21 x 12 = 252

21 x 13 = 273

21 x 14 = 294

21 x 15 = 315

21 x 16 = 336

21 x 17 = 357

21 x 18 = 378

21 x 19 = 399

21 x 20 = 420

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