Find the sum of -23, 18, -26 and -57

Options

A. `-40`
B. `-88`
C. `-60`
D. `-20`

Answer

To find the sum of the integers -23, 18, -26, and -57, we can follow these steps:

### Step 1: Write down the expression
We need to find the sum of the integers:
\[ \text{Sum} = -23 + 18 + (-26) + (-57) \]

### Step 2: Group the integers for easier addition
We can group the integers into two pairs:
\[ \text{Sum} = (-23 + 18) + (-26 + -57) \]

### Step 3: Calculate the first pair
Now, let's calculate the first pair:
\[ -23 + 18 = -5 \]

### Step 4: Calculate the second pair
Next, we calculate the second pair:
\[ -26 + (-57) = -26 - 57 = -83 \]

### Step 5: Combine the results
Now we combine the results from the two pairs:
\[ \text{Sum} = -5 + (-83) = -5 - 83 \]

### Step 6: Final calculation
Now, we perform the final addition:
\[ -5 - 83 = -88 \]

### Conclusion
Thus, the sum of -23, 18, -26, and -57 is:
\[ \text{Sum} = -88 \]

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