A computer can preform 10^5 calculations per sec how many can it preform in 10 seconds

Let convert 10^5 to a number. When you're talking about exponents on 10, I just add the number of zeros that the exponent gives. So let's add 5 zeros.

100,000

Now, we need to multiply this by 10 since it's asking how many it can perform in 10 seconds.

1,000,000 calculations every 10 seconds.

Step 1: Find out what 10 to the 5th power is equal to. it = 100,000

Step 2: Multiply 100,000 by 10

Step 3: your answer = 1,000,000