15409+178+591+322 determine the sum by suitable rearrangements
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Answered by
21
15409+591+178+322
16000+500
16500
Answered by
10
Answer:
16500
Step-by-step explanation:
15409 + 178 + 591 + 322
We know that
409 + 91 = 500 and 78 + 22 = 100
It can be written as
(15409 + 591) + (178 + 322) = 16000 + 500
On further calculation
(15409 + 591) + (178 + 322) = 16500
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