Observe the following : 1 + 2 – 3 + 4 + 5 – 6 – 7 + 8 – 9 = –5 Change one ‘–’ sign as ‘+’ sign to get the sum 9.
Observe the following :
1 + 2 – 3 + 4 + 5 – 6 – 7 + 8 – 9 = –5
Change one ‘–’ sign as ‘+’ sign to get the sum 9.
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