Addition of numbers close to multiple of tens i.e. 19,29,39,49,... (Addition tricks)

This is also a very good idea of addition. The following examples of addition will a good effort to make a sharp mind of your kids. At least this is a new idea of addition and helpful to solve questions more fastly.

Let us see the following examples.

117 + 29

= 117 + 30 – 1

= 147 – 1

= 146

316 + 97

= 316 + 100 – 3

= 416 – 3

= 413

256 + 96

= 256 + 100 – 4

= 356 – 4

= 352

99 + 98

= 100 – 1 + 100 – 2

= 200 – 3

= 197

889 + 999

= 889 + 1000 – 1

= 1889 – 1

= 1888

SHORTCUT TRICKS (Division)

Divisible by 2 Shortcut trick

Divisible by 3 Shortcut trick

Divisible by 4 Shortcut trick

Divisible by 5 Shortcut trick

Divisible by 6 Shortcut trick

Divisible by 7 Shortcut trick

Divisible by 8 Shortcut trick

Divisible by 9 Shortcut trick

Divisible by 10 Shortcut trick

SHORTCUT TRICKS (Prime Number)

Find the prime number from 1 to 100 just in 5 second (MATH PRIME NUMBER SHORTCUT TRICK from 1 to 100 number) ?

Find a large number "A" is prime number or not (MATH PRIME NUMBER SHORTCUT TRICK By using Square Root method) ?

Find the composite number from 1 to 100 just in 5 second (MATH COMPOSITE NUMBER SHORTCUT TRICK from 1 to 100 number) ?

Worksheets (Solved)

Matrix Logarithm

Trigonometric Identities

Application of Trigonometry

Integration