Question

Question 64

Write the digits 0,1,2,3,.......,9 in this order and insert '+' or '-' between them to get the result 3.

Answer 1

Given digits are 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.

We have to insert '+' or '-' between them to get the result 3.

0 + 1 + 2 + 3 - 4 + 5 + 6 + 7 - 8 - 9

= 1 + 2 + 3 + 5 + 6 + 7 - (4 + 8 + 9)

= 24 - 21

= 3