Rashida wrote these steps to find the estimated difference between 85 and 46.

Step 1: 85 rounded to the nearest ten is 80.

Step 2: 46 rounded to the nearest ten is 50.

Step 3: The term difference means "to subtract."

Step 4: The estimated difference between 85 and 46 is

80 - 50 = 30.

In what step did her first error occur?

Step 1

Step 2

Step 3

Step 4

In Step 1 the first error occur.

Step-by-step explanation:

Given:

Step 1: 85 rounded to the nearest ten is 80.

Step 2: 46 rounded to the nearest ten is 50.

Step 3: The term difference means "to subtract."

Step 4: The estimated difference between 85 and 46 is

80 - 50 = 30.

Now, we see in the step 1 it is that 85 rounded to the nearest ten is 80.

But the number 85 rounded to the nearest ten is 90.

As we round the number we check the last digit if it is 5,6,7,8 and 9 the number rounded up.

And if the last digit is 1,2,3 and 4 the number is rounded down.

Therefore, in Step 1 the first error occur.