Question

3. Han's calculation of 972 = 9 is shown here.

a. Find 180 - 9.
1 80
9 9 7
- 9
7 2
72

b. Use your calculation of 180 . 9 to explain how you know Han
has made a mistake.
c. Identify and correct Han's mistake.



Answer 1

180x9= 1620

Explanation:

7

180

x 9

1620

Answer 2

A- 180 x 9= 1620

B- 180 x 9 = 1,620. if han got the answer correct, by multiplying the answer would have been 972

C- correct answer is 108

Explanation:

multiplication is the inverse operation of division. to check if Hans answer is correct you would do 180 x 9 = 1,620. if han got the answer correct, by multiplying the answer would have been 972