0 Which number? Posted by Sahar on March 31, 2011 Which number must we put instead of "?" in the parenthesis? 27, (21), 39 19, (16), 42 36, (?), 24 You need to be a member of MyEnglishClub to add comments! Join MyEnglishClub Email me when people reply – Follow
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Well done!
Excellent!!
Your way is very interesting!
Because it can solve in this way too:
2+7+3+9=21
1+9+4+2=16
3+6+2+4= 15
But the way that you did is new for me.
Very Good!