Question

how can we calculate very fast like question 4566+2699+4588+12345+8290= ​ without using calculator

Answer 1

Answer:

Generally, you come across such calculations in ICSE/ CBSE exams or homework or while thinking mentally (JEE, KVPY, Olympiad & lot more) to solve a Math problem. Next time use this trick to save your time.

Take any number, and depending on its even or odd nature, divide the number by 2 (get half of the number).

Even Number:

2464 x 5 =?

Step 1. 2464 / 2 = 1232

Step 2. add 0

The answer will be 2464 x 5 = 12320

Odd Number:

3775 x 5

Step 1. Odd number; so ( 3775 - 1) / 2 = 1887

Step 2. As it is an odd number, so instead of 0 we will put 5

The answer will be 3775 x 5 = 18875

Step-by-step explanation:

Refer this bro, :)

Answer 2

Answer:

32488

Step-by-step explanation:

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