Han's calculation of 972÷9 is shown here. Find 180.9. Use your calculation of 180-9 to explain how you know Han has made a mistake. Identify and Correct Han's mistake.
180

9/972
-9
7 2
- 7 2
0
-0
=0

Hans calculation of 9729 is shown here Find 1809 Use your calculation of 1809 to explain how you know Han has made a mistake Identify and Correct Hans mistake 1 class=