i want to make 99 by using my calculator, but the 9 key ,the + key and the - key are broken. how can i use my calculator to do this task.

Question

five solutions for the problems

Answer 1

If I'm understanding correctly, you basically need to use any operation other than addition (+) and subtraction (-) to yield the number 99 without using the number 9...?

If this is the case, then notice that divisors of 99 include 1, 3, 9, 11, 33, and 99. That is,

       1*99 = 99 ,  3*33 = 99 ,  9*11 = 99

Since we can't use the 9 on the calculator, we can multiply 3 by 33 to generate 99. 

Answer 2

There are lots of ways to do this.

Use x or ÷ or use exponential funtion as well.

such as

33 x 3 = 99

1188 ÷ 12 = 99

11√3 x √3 x √3 x √3 = 99

....

you can think more about it.

hope this help