make 100 with the numbers 16 17 23 24 39

make 100 with the numbers 16 17 23 24 39

Answers
Someone out there may know a 'correct' way to do this, but I worked it out by ignoring the 'tens' and taking a look at the 'units'. I did this because it makes it easier to do mental arithmetic and because for the number to be 100, the adding some of the units and subtracting others has to come to zero.
parkfields
17 June 2011
17+17+17+17+16+16
Amy
11 November 2020
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