Question

Chen completed the division problem below.
0.9 StartLongDivisionSymbol 192.6 EndLongDivisionSymbol right arrow 9 StartLongDivisionSymbol 192.6 EndLongDivisionSymbol minus 18 = 12. 12 minus 9 = 36. 36 minus 36 = a remainder of 0 and a quotient of 21.4.
What is Chen’s error?
He included a 4 in the quotient, which does not belong.
He multiplied the dividend by 100 instead of 10.
He should have multiplied both numbers by 100.
He did not subtract correctly in one of the steps.

Answer 1

Given : Chen completed the division problem

To Find :  Chen’s error?

He included a 4 in the quotient, which does not belong.

He multiplied the dividend by 100 instead of 10.

He should have multiplied both numbers by 10.

He did not subtract correctly in one of the steps.

Solution:

While dividing 192.6   by 0.9

he changed 0.9 to  9  by multiplying with 10  but he did not make any change in 192.6     as it should have been 192.6 * 10  = 1926

same as 0.9 * 10  = 9

Then Quotient would have been 214  instead of 21.4

Hence Correct answer is

He should have multiplied both numbers by 10  

Learn More:

In which step did David make his first error?brainly.in/question/28281487

brainly.in/question/13337316

Task 1

brainly.in/question/13463012

Answer 2

Answer:He should have multiplied both numbers by 100

Step-by-step explanation:

Given

See Attachment for given

Required

What's Chen error

Chen error is at step 2 where he changed 0.9 to 9.

Any changes made on the divisor must also be made on the dividend

He got 9 by multiplying 0.9 by 10;

So, his mistake is that he should have multiplied both numbers by the same number.

From the list of given options, the option that best answer this question is He should have multiplied both numbers by 10