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Using digits of 1999 in that order and operations +, -, x, /, and brackets can you make any of the numbers from 1 to 20?

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Using digits of 1999 in that order and operations +, -, x, /, and brackets can you make any of the numbers from 1 to 20?
posted May 11, 2018 by anonymous

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1 Answer

+1 vote

19 - 9 - 9 = 1
(1×9 + 9)/ 9 = 2
1 + (9+9)/9 = 3
-1 + 9 - (9/9) = 7
-1 + 9 - 9 + 9 = 8
1 + 9 - (9/9) = 9
(1 + 9)/(9/9) = 10
(1/9) × (99) = 11
1 + (99/9) = 12
19 - (9/9) = 18
19 - 9 + 9 = 19
19 + (9/9) = 20

answer May 12, 2018 by Tejas Naik



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