This is an easy trick
To subtract a large number from 1,000
subtract all but the last number from 9, then subtract the last number from 10
1000
-547
step1: subtract 5 from 9 = 4
step2: subtract 4 from 9 = 5
step3: subtract 7 from 10 = 3
answer: 453
Subscribe to:
Post Comments (Atom)
Remembering the greatest Indian Mathematician #SrinivasaRamanujan ji on his death anniversary (22 Dec 1887 – 26 Apr 1920) #damtindia #R...
No comments:
Post a Comment