.nearest-tenth-calculator-container {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f9f9f9;
padding: 25px;
border-radius: 10px;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
max-width: 600px;
margin: 30px auto;
border: 1px solid #e0e0e0;
}
.nearest-tenth-calculator-container h2 {
color: #333;
text-align: center;
margin-bottom: 25px;
font-size: 1.8em;
}
.nearest-tenth-calculator-container .input-group {
margin-bottom: 18px;
display: flex;
flex-direction: column;
}
.nearest-tenth-calculator-container label {
display: block;
margin-bottom: 8px;
color: #555;
font-weight: bold;
font-size: 1em;
}
.nearest-tenth-calculator-container input[type="number"] {
width: 100%;
padding: 12px;
border: 1px solid #ccc;
border-radius: 6px;
box-sizing: border-box;
font-size: 1.1em;
transition: border-color 0.3s ease;
}
.nearest-tenth-calculator-container input[type="number"]:focus {
border-color: #007bff;
outline: none;
box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}
.nearest-tenth-calculator-container button {
background-color: #007bff;
color: white;
padding: 14px 25px;
border: none;
border-radius: 6px;
cursor: pointer;
font-size: 1.1em;
font-weight: bold;
width: 100%;
transition: background-color 0.3s ease, transform 0.2s ease;
margin-top: 15px;
}
.nearest-tenth-calculator-container button:hover {
background-color: #0056b3;
transform: translateY(-1px);
}
.nearest-tenth-calculator-container button:active {
transform: translateY(0);
}
.nearest-tenth-calculator-container .result-output {
margin-top: 25px;
padding: 18px;
background-color: #e9f7ff;
border: 1px solid #b3e0ff;
border-radius: 8px;
font-size: 1.2em;
color: #0056b3;
text-align: center;
font-weight: bold;
min-height: 30px;
display: flex;
align-items: center;
justify-content: center;
}
.nearest-tenth-calculator-container .result-output strong {
color: #003f7f;
}
.nearest-tenth-calculator-container p {
color: #444;
line-height: 1.6;
margin-bottom: 15px;
}
.nearest-tenth-calculator-container ul {
list-style-type: disc;
margin-left: 20px;
margin-bottom: 15px;
color: #444;
}
.nearest-tenth-calculator-container ul li {
margin-bottom: 8px;
}
Nearest Tenth Calculator
Enter a number and click "Calculate".
function calculateNearestTenth() {
var numberToRoundInput = document.getElementById("numberToRound").value;
var resultDiv = document.getElementById("result");
if (numberToRoundInput === "") {
resultDiv.innerHTML = "Please enter a number to round.";
return;
}
var num = parseFloat(numberToRoundInput);
if (isNaN(num)) {
resultDiv.innerHTML = "Invalid input. Please enter a valid number.";
return;
}
// Round to the nearest tenth
// Multiply by 10, round to nearest integer, then divide by 10
var roundedNum = Math.round(num * 10) / 10;
// Ensure it displays with one decimal place, e.g., 5.0 instead of 5
resultDiv.innerHTML = "Rounded to Nearest Tenth: " + roundedNum.toFixed(1) + "";
}
Understanding the Nearest Tenth
Rounding to the nearest tenth means adjusting a number so that it has only one digit after the decimal point. This process is crucial for simplifying numbers, making estimations, and ensuring appropriate precision in various fields, from science and engineering to everyday financial calculations.
How to Round to the Nearest Tenth:
To round a number to the nearest tenth, follow these simple steps:
- Identify the Tenths Place: This is the first digit immediately to the right of the decimal point.
- Look at the Hundredths Digit: Examine the digit immediately to the right of the tenths place (the second digit after the decimal).
- Apply the Rule:
- If the hundredths digit is 5 or greater (5, 6, 7, 8, 9), you round up the tenths digit. This means you increase the tenths digit by one. If the tenths digit was 9, it becomes 0, and you carry over 1 to the units place.
- If the hundredths digit is less than 5 (0, 1, 2, 3, 4), you keep the tenths digit the same.
- Drop Remaining Digits: After applying the rule, discard all digits to the right of the tenths place.
Examples of Rounding to the Nearest Tenth:
- 3.14159: The tenths digit is 1. The hundredths digit is 4. Since 4 is less than 5, the tenths digit stays the same. Result: 3.1
- 12.78: The tenths digit is 7. The hundredths digit is 8. Since 8 is 5 or greater, round up the 7 to 8. Result: 12.8
- 0.05: The tenths digit is 0. The hundredths digit is 5. Since 5 is 5 or greater, round up the 0 to 1. Result: 0.1
- 5.99: The tenths digit is 9. The hundredths digit is 9. Since 9 is 5 or greater, round up the 9. This makes it 10, so the 9 becomes 0, and you carry over 1 to the units place (5 becomes 6). Result: 6.0
- 7.203: The tenths digit is 2. The hundredths digit is 0. Since 0 is less than 5, the tenths digit stays the same. Result: 7.2
Using this calculator, you can quickly and accurately round any number to its nearest tenth, making your mathematical tasks simpler and more precise.