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 By: Hoang Quang Anh (offline)  Saturday, July 20 2013 @ 01:33 AM CDT (Read 824 times)
Hoang Quang Anh

Although this is a simple question but I cannot think of which operations to put in to make this expression correct.

7 ___ (7 ___ 7) ____ 7 = 5

Newbie

Registered: 06/05/12
Posts: 11

 By: echeewh (offline)  Saturday, July 20 2013 @ 07:38 AM CDT
echeewh

Hey Quang Anh,

Following is the solution:

7 - (7 + 7) ÷ 7
= 7 - (14 ÷ 7)
= 7 - 2
= 5

========

Trust this helps.

Do let me know again if there's further clarification.

Cheers,
Edward

Active Member

Registered: 04/21/11
Posts: 627

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