`1002div49xx99-1299=?`

Options

A. 700
B. 600
C. 900
D. 250

Explanation

To solve the equation \(1002 \div 49 \times 99 - 1299\) using approximation, we can follow these steps:

### Step 1: Round off the numbers
We will round off the numbers to make the calculations easier.
- Round \(1002\) to \(1000\)
- Round \(49\) to \(50\)
- Round \(99\) to \(100\)
- Round \(1299\) to \(1300\)

### Step 2: Rewrite the equation with rounded numbers
Now, we can rewrite the equation using the rounded values:
\[ 1000 \div 50 \times 100 - 1300 \]

### Step 3: Perform the division
Calculate \(1000 \div 50\):
\[ 1000 \div 50 = 20 \]

### Step 4: Multiply the result by 100
Now multiply the result by \(100\):
\[ 20 \times 100 = 2000 \]

### Step 5: Subtract \(1300\) from the result
Now subtract \(1300\) from \(2000\):
\[ 2000 - 1300 = 700 \]

### Final Result
Thus, the value of the expression \(1002 \div 49 \times 99 - 1299\) is approximately \(700\).

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