642 + 4120 + 387 - 51620 = ? - - 642 + 4120 + 387 - 51620 = ? Maths in hindi, number system 31539 question answers in hindi pdf 21869 questions in hindi, Know About 41629 Maths online test Maths notes in hindi quiz book 31529
31529
642 4120 387-51620
642 4120 387 - 51620 =
642 412 387-51620=?
answer is -46471