30 divided by half plus 10
Understand the Problem
The question is asking to perform the mathematical operation of dividing 30 by half and then adding 10 to the result. We will first calculate 30 divided by 0.5, and then add 10 to that result.
Answer
$70$
Answer for screen readers
The final answer is $70$.
Steps to Solve
- Calculate the division by half First, we perform the division of 30 by 0.5. Dividing by a fraction is the same as multiplying by its reciprocal. So:
$$ 30 \div 0.5 = 30 \times 2 = 60 $$
- Add 10 to the result Next, we add 10 to the result obtained from the first step:
$$ 60 + 10 = 70 $$
The final answer is $70$.
More Information
Dividing a number by a fraction (like 0.5) effectively doubles that number. So, dividing 30 by half gives you 60, and adding 10 gives you 70.
Tips
- A common mistake is to misinterpret "dividing by half" as simply halving the number instead of understanding it as multiplying by 2.
- Ensure to perform the multiplication and addition in the correct order.
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