Working Backward with Numbers

The video tutorial explains a math problem where John needs to find the number before he added 322 to get 969. The method used is working backward, where 322 is subtracted from 969 to find the original number, 647. The solution is verified by adding 322 back to 647 to ensure the result is 969.

What is the initial number John asked in his math homework?

• 322

• 123

• 969

• 647

What is the final answer John got after asking 322?

• 123

• 647

• 969

• 322

Which method is used to solve the problem?

• Working forward

• Working backward

• Guess and check

• Trial and error

What operation is performed on 322 when working backward?

• Subtraction

• Addition

• Division

• Multiplication

What is the result of adding 647 and 322?

• 123

• 969

• 647

• 322