Question

_×_+_=90. u have to use only one number 3 times

Answer 1

9×9=81+9=90

I hope this answer is right

Answer 2

Heya your answer
It's sapna here
✍️✍️
I think so.
If we multiply 20×4+10=90.
Method :
If we multiply 20 with 4 it will come 80 and in 80 we add 10 the answer will be 90.

Hope it helps you
Thankq