Question

In which step did his first error occur?

Anani used 10 as an anchor to find the difference of 16 and
7. His steps are shown.
Step 1: The phrase "difference of" means subtraction.
Step 2: 16-6 = 10
Step 3: Since 7 is 1 more than 6, 1 more needs to be added
to 10.
Step 4: Therefore, 16 - 7 = 11.
OOOO
Step 1
Step 2
Step 3
Step 4

Answer 1

Step 3

Explanation:

16-7=9 he just miscalculated this equation

Answer 2

Option 3.

Explanation:

It is given that Anani used 10 as an anchor to find the difference of 16 and 7.

The correct steps are

Step 1: The phrase "difference of" means subtraction.

Step 2: 16-6 = 10

Step 3: Since 7 is 1 more than 6, 1 more needs to be subtracted

to 10.

16-6-1 = 10-1

Step 4: Therefore, 16 - 7 = 9.

Anani did his first error in step 3.

Therefore, the correct option is 3.