Answer :
Let's go through each part step-by-step:
### 1. Find the actual and estimated sum by rounding off to the nearest lakh.
#### a. For the numbers 281025 and 128509:
Actual Sum:
[tex]\[ 281025 + 128509 = 409534 \][/tex]
Estimated Sum:
Rounding each number to the nearest lakh:
- [tex]\(281025 \approx 300000\)[/tex] (since 281025 is closest to 300000)
- [tex]\(128509 \approx 100000\)[/tex] (since 128509 is closest to 100000)
Adding the rounded numbers:
[tex]\[ 300000 + 100000 = 400000 \][/tex]
So, the actual sum is 409534 and the estimated sum is 400000.
#### b. For the numbers 1429817 and 5607520:
Actual Sum:
[tex]\[ 1429817 + 5607520 = 7037337 \][/tex]
Estimated Sum:
Rounding each number to the nearest lakh:
- [tex]\(1429817 \approx 1400000\)[/tex] (since 1429817 is closest to 1400000)
- [tex]\(5607520 \approx 5600000\)[/tex] (since 5607520 is closest to 5600000)
Adding the rounded numbers:
[tex]\[ 1400000 + 5600000 = 7000000 \][/tex]
So, the actual sum is 7037337 and the estimated sum is 7000000.
### 2. Find the actual and estimated difference by rounding off to the nearest lakh.
#### For the numbers 527319 and 25103:
Actual Difference:
[tex]\[ 527319 - 25103 = 502216 \][/tex]
Estimated Difference:
Rounding each number to the nearest lakh:
- [tex]\(527319 \approx 500000\)[/tex] (since 527319 is closest to 500000)
- [tex]\(25103 \approx 0\)[/tex] (since 25103 is closest to 0)
Subtracting the rounded numbers:
[tex]\[ 500000 - 0 = 500000 \][/tex]
So, the actual difference is 502216 and the estimated difference is 500000.
### 1. Find the actual and estimated sum by rounding off to the nearest lakh.
#### a. For the numbers 281025 and 128509:
Actual Sum:
[tex]\[ 281025 + 128509 = 409534 \][/tex]
Estimated Sum:
Rounding each number to the nearest lakh:
- [tex]\(281025 \approx 300000\)[/tex] (since 281025 is closest to 300000)
- [tex]\(128509 \approx 100000\)[/tex] (since 128509 is closest to 100000)
Adding the rounded numbers:
[tex]\[ 300000 + 100000 = 400000 \][/tex]
So, the actual sum is 409534 and the estimated sum is 400000.
#### b. For the numbers 1429817 and 5607520:
Actual Sum:
[tex]\[ 1429817 + 5607520 = 7037337 \][/tex]
Estimated Sum:
Rounding each number to the nearest lakh:
- [tex]\(1429817 \approx 1400000\)[/tex] (since 1429817 is closest to 1400000)
- [tex]\(5607520 \approx 5600000\)[/tex] (since 5607520 is closest to 5600000)
Adding the rounded numbers:
[tex]\[ 1400000 + 5600000 = 7000000 \][/tex]
So, the actual sum is 7037337 and the estimated sum is 7000000.
### 2. Find the actual and estimated difference by rounding off to the nearest lakh.
#### For the numbers 527319 and 25103:
Actual Difference:
[tex]\[ 527319 - 25103 = 502216 \][/tex]
Estimated Difference:
Rounding each number to the nearest lakh:
- [tex]\(527319 \approx 500000\)[/tex] (since 527319 is closest to 500000)
- [tex]\(25103 \approx 0\)[/tex] (since 25103 is closest to 0)
Subtracting the rounded numbers:
[tex]\[ 500000 - 0 = 500000 \][/tex]
So, the actual difference is 502216 and the estimated difference is 500000.