Emi made a 90 on her math test. There was 60 problems on her test. How many did she miss?

If she made a 90 that means 90 percent aka. 90 so multiply that by 60 to get 54 right aka 6 wrong which you could find either by subtracting 54 from 60 or solving for 10 percent bc she got that much wrong and multiply. 10x60=6 wrong