Decimal Flashcard

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was. For example, rounding 23.542 to the nearest tenth gives 23.5.

Front

How do you round a number to the nearest tenth?

Back

To round a number to the nearest tenth, look at the digit in the hundredths place. If it is 5 or greater, increase the tenths place by 1. If it is less than 5, keep the tenths place the same.

Front

What does it mean to order numbers from least to greatest?

Back

Ordering numbers from least to greatest means arranging them in ascending order, starting with the smallest number and ending with the largest.

Front

How do you write a number in expanded form?

Back

Expanded form is a way to express a number by showing the value of each digit. For example, 327.38 can be written as (3 x 100) + (2 x 10) + (7 x 1) + (3 x 0.1) + (8 x 0.01).

Front

What is the nearest hundredth of a number?

Back

The nearest hundredth is the second digit to the right of the decimal point. To round to the nearest hundredth, look at the digit in the thousandths place.

Front

How do you convert a decimal to expanded form?

Back

To convert a decimal to expanded form, break it down into the sum of each digit multiplied by its place value. For example, 3.704 = (3 x 1) + (7 x 1/10) + (4 x 1/1000).

Front

What is the difference between tenths and hundredths?

Back

Tenths are the first digit to the right of the decimal point, while hundredths are the second digit to the right. For example, in 0.75, 7 is in the tenths place and 5 is in the hundredths place.

Front

How do you identify the least number in a set of decimals?

Back

To identify the least number, compare the numbers starting from the leftmost digit. The first digit that differs will determine which number is the smallest.

Front

What is the value of the digit 5 in the number 5.678?

Back

In the number 5.678, the digit 5 is in the ones place, so its value is 5.

Front

What does it mean to round a number to the nearest whole number?

Back

Rounding to the nearest whole number means adjusting the number to the closest integer. If the decimal part is 0.5 or greater, round up; if it is less than 0.5, round down.