`22.9782+9.002-?=23.001`

Options

A. 9
B. 8
C. 6
D. 11

Explanation

To solve the equation \( 22.9782 + 9.002 - ? = 23.001 \), we will follow these steps:

### Step 1: Round the numbers
First, we round the numbers to make calculations easier:
- \( 22.9782 \) rounds to \( 23 \)
- \( 9.002 \) rounds to \( 9 \)
- \( 23.001 \) rounds to \( 23 \)

### Step 2: Rewrite the equation
Now we can rewrite the equation using the rounded values:
\[ 23 + 9 - ? = 23 \]

### Step 3: Simplify the equation
Next, we simplify the left side of the equation:
\[ 32 - ? = 23 \]

### Step 4: Solve for the missing number
To find the missing number (let's call it \( x \)), we can rearrange the equation:
\[ ? = 32 - 23 \]
Calculating this gives:
\[ ? = 9 \]

### Final Answer
Thus, the required value of \( ? \) is \( 9 \).

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