84 rounded to the nearest ten
Understand the Problem
The question is asking how to round the number 84 to the nearest ten. To determine this, we need to look at the digit in the ones place, which is 4 in this case, and apply the rounding rules.
Answer
80
Answer for screen readers
80
Steps to Solve
- Identify the place values
Look at the number 84. The digit in the tens place is 8 and the digit in the ones place is 4.
- Apply rounding rules
Since we want to round to the nearest ten, we need to focus on the ones place (4). The rounding rule states:
- If the ones digit is 5 or more, round up.
- If the ones digit is less than 5, round down.
In this case, since the ones digit is 4, which is less than 5, we will round down.
- Determine the rounded number
When we round down, we keep the digit in the tens place the same (8) and replace the digit in the ones place with 0.
Thus, rounding 84 to the nearest ten gives us:
$$ 80 $$
80
More Information
The nearest ten to 84 is 80. Rounding is a common mathematical technique used in various calculations to simplify numbers for easier understanding and computation.
Tips
- A common mistake is misunderstanding when to round up or down. Remember the rule: numbers from 0 to 4 round down, while 5 to 9 round up.
- Another mistake could be not replacing the ones digit with a zero after rounding correctly.
