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
TRICK TO SUBSTRACT NUMBER EASILY
Posted by
SHRENIK
on Wednesday, July 15, 2009
Labels:
FUN,
FUN WITH NUMBERS,
SUBSTRACT
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