Mathematics

14 September, 00:41

Katie wrote these steps to find the estimated difference between 69 and 31.

Step 1: 69 rounded to the nearest ten is 70.

Step 2: 31 rounded to the nearest ten is 40.

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

Step 4: The estimated difference between 69 and 31 is

70 - 40 = 30.

In what step did her first error occur?

Step 1

Step 2

Step 3

Step 4

+5

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