Making 26, 70, 86,97 using 2, 5, 9 and 6

[Kaurji]

I am in grade 8. I have a task to create the numbers 1 to 100 using 2, 5, 6 and 9. I have done all except 26, 70, 86 and 97. I have used factorial, summations, division, addition and subtraction on my previous answers but these four have me stumped. Can anyone help me?

 

[Deleted member 4993]

I am in grade 8. I have a task to create the numbers 1 to 100 using 2, 5, 6 and 9. I have done all except 26, 70, 86 and 97. I have used factorial, summations, division, addition and subtraction on my previous answers but these four have me stumped. Can anyone help me?

26=5^2+6-5

 

[Steven G]

I am in grade 8. I have a task to create the numbers 1 to 100 using 2, 5, 6 and 9. I have done all except 26, 70, 86 and 97. I have used factorial, summations, division, addition and subtraction on my previous answers but these four have me stumped. Can anyone help me?

70= 2*5^2 + 9 + 6 + 5
86= 9^2 + 5
97 = 9^2 +9 +5 +2

Since 6-5 = 1, you can get any integer by adding 6-5 to itself enough time.

 

[lookagain]

I am in grade 8. I have a task to create the numbers 1 to 100 using 2, 5, 6 and 9. I have done all except 26, 70, 86 and 97. I have used factorial, summations, division, addition and subtraction on my previous answers but these four have me stumped. Can anyone help me?

Kaurji, you forgot to mention that all of 2, 5, 6, and 9 must be used in each expression, and that each may only be used once, correct?

That is the standard way.

 

[lookagain]

\(\displaystyle 26((\sqrt{9})! \ - \ 5) \ = \ 26 \ \ \ \ (if \ \ concatenation \ \ is \ \ allowed)\)

 

[Kaurji]

I am in grade 8. I have a task to create the numbers 1 to 100 using 2, 5, 6 and 9. I have done all except 26, 70, 86 and 97. I have used factorial, summations, division, addition and subtraction on my previous answers but these four have me stumped. Can anyone help me?

Thank you everyone for for helping me with this. I appreciate your guidance

 

[Kaurji]

Kaurji, you forgot to mention that all of 2, 5, 6, and 9 must be used in each expression, and that each may only be used once, correct?

That is the standard way.

Yes sorry. That is correct. Each number can only be used one and all numbers need to be in equation