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What are the highest and lowest numbers that can possibly be scored? 9 ? 3 ? 4 ? 7 ? 5 =

0 votes
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Working from left to right, calculate the numbers in the order shown (without using order of operation).

Replace each question mark with a mathematical sign. Plus, minus, multiply and divide can each be used once only.

What are the highest and lowest numbers that can possibly be scored?

9 ? 3 ? 4 ? 7 ? 5 =

posted Nov 3, 2020 by Varuna Magar

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2 Answers

0 votes

lowest number
9-3+4=10//////////////////10*7/5=14
highest number
9/3+4=7*7-5=44

answer Nov 5, 2020 by Gasmi Elakeb
0 votes

The permutation of 4 elements gives us 24 combinations
I worked all 24 combinations
Lowest number is given by
9 + 3 / 4 - 7 x 5 = - 20
Highest number is given by
9 / 3 + 4 x 7 - 5 = 44

answer Nov 13, 2020 by anonymous



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You have to fill numbers in place of question marks. The numbers that you can use are 1, 3, 5, 7, 9, 11, 13 and 15. You can repeat the numbers if you like.

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