Rounding, Comparing, and Ordering Decimals

Front

What is rounding in decimals?

Back

Rounding is the process of adjusting the digits of a decimal number to make it simpler while keeping its value close to the original. For example, rounding 3.76 to the nearest whole number gives 4.

Front

How do you compare decimals?

Back

To compare decimals, align the numbers by the decimal point and compare digit by digit from left to right. The first digit that differs determines which number is greater.

Front

What does it mean to order decimals?

Back

Ordering decimals means arranging them from least to greatest or greatest to least based on their value.

Front

What is the expanded notation of a decimal?

Back

Expanded notation expresses a number as the sum of its parts based on place value. For example, 34.56 can be written as (3 x 10) + (4 x 1) + (5 x 0.1) + (6 x 0.01).

Front

How do you write a decimal in word form?

Back

To write a decimal in word form, say the whole number part, then 'and', followed by the decimal part as a fraction. For example, 2.75 is 'two and seventy-five hundredths'.

Front

What is the symbol for 'less than'?

Back

The symbol for 'less than' is '<'. For example, 3 < 5 means 3 is less than 5.

Front

What is the symbol for 'greater than'?

Back

The symbol for 'greater than' is '>'. For example, 7 > 4 means 7 is greater than 4.

Front

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

Back

To identify the least number, compare each decimal and find the one with the smallest value.

Front

What is the difference between hundredths and thousandths?

Back

Hundredths are two places to the right of the decimal point (0.01), while thousandths are three places to the right (0.001).

Front

How do you convert a decimal to a fraction?

Back

To convert a decimal to a fraction, write the decimal over its place value (e.g., 0.75 = 75/100) and simplify if possible.