Number Puzzle #21- Target Number 153 -
Using the numbers 1, 1, 2, 2, 5, and 7 (in any order), can you write a mathematical expression
(e.g. (7*5)*(1+1)-(2/2) with a result equal to 153?
You may use any of the four basic math operations (addition, subtraction, multiplication, division) as well
as parenthesis. Some additional rules:
1. You are not required to use all six numbers.
2. You may NOT
join numbers (e.g. 7 and 5 to make 75).
3. You may only use a number as many times as it appears above.
Do you have a suggestion
for this puzzle (e.g. something that should
be mentioned/clarified in the question or solution, bug, typo, etc.)?