0.5 - (-10.5 × 5) + 40.5 = □
Understand the Problem
The question is asking to solve a mathematical expression involving multiplication and addition/subtraction. It requires calculating the value of the expression step by step to find the correct answer.
Answer
$93.5$
Answer for screen readers
The final answer is $93.5$.
Steps to Solve
- Calculate the multiplication term
First, calculate the multiplication inside the parentheses:
$$ -10.5 \times 5 = -52.5 $$
- Substitute back into the expression
Replace the multiplication result back into the original expression:
$$ 0.5 - (-52.5) + 40.5 $$
- Resolve the double negative
Now, resolve the double negative:
$$ 0.5 + 52.5 + 40.5 $$
- Calculate the sum
Now, add the numbers together:
First add $0.5 + 52.5$:
$$ 0.5 + 52.5 = 53 $$
Now add that result to $40.5$:
$$ 53 + 40.5 = 93.5 $$
The final answer is $93.5$.
More Information
This expression illustrates basic operations involving multiplication and addition/subtraction. Handling negative numbers correctly is crucial in arriving at the final answer.
Tips
- Confusing double negatives: Remember that subtracting a negative is the same as addition.
- Order of operations: Always follow the correct order (parentheses, multiplication/division, addition/subtraction).
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