Question

[5×{(77+64-646)-22]-678}+10​

Answer 1

=[5×{(77+64-646)-22]-678}+10​
=[5.[(141-646) - 22] - 678} + 10
={5.[- 505 - 22] - 678} + 10
= {5 . [ - 527] - 678} + 10
= { - 2635 - 678} + 10
= - 3313 + 10
= - 3303