Answer :
To solve the problem of adding 186 and 85 using compensation, let's break it down into simple steps:
1. Identify a Round Number for Compensation: We choose a round number that is close to 85, which in this case is 100. The idea is to make the addition easier by using a round number.
2. Adjust by the Difference Between the Numbers: Since we added 100 instead of 85, we need to subtract the difference. The difference between 100 and 85 is 15.
3. Perform the Adjusted Addition:
- Start with the initial number, which is 186.
- Add the compensated number 100. This gives us 186 + 100 = 286.
- Now, subtract the difference (15) that we added extra, so we do 286 - 15 = 271.
By following these steps, the final answer to 186 + 85, using compensation, is 271.
1. Identify a Round Number for Compensation: We choose a round number that is close to 85, which in this case is 100. The idea is to make the addition easier by using a round number.
2. Adjust by the Difference Between the Numbers: Since we added 100 instead of 85, we need to subtract the difference. The difference between 100 and 85 is 15.
3. Perform the Adjusted Addition:
- Start with the initial number, which is 186.
- Add the compensated number 100. This gives us 186 + 100 = 286.
- Now, subtract the difference (15) that we added extra, so we do 286 - 15 = 271.
By following these steps, the final answer to 186 + 85, using compensation, is 271.
