Numbers in base ten decimals pre test

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part. For example, in 3.14, 3 is the whole number and 14 is the fractional part.

Front

How do you compare decimals?

Back

To compare decimals, align the decimal points and compare each digit from left to right. The first digit that differs determines which decimal is larger.

Front

What does it mean to write a number in expanded form?

Back

Writing a number in expanded form means breaking it down into the sum of its parts based on place value. For example, 654.86 can be written as (6 x 100) + (5 x 10) + (4 x 1) + (8 x 0.1) + (6 x 0.01).

Front

What is rounding?

Back

Rounding is the process of adjusting a number to a nearby value that is simpler or more convenient, often to a specified place value, such as the nearest whole number or tenth.

Front

What is the value of 0.5 in hundredths?

Back

0.5 is equal to 0.50, which means it has the same value as 0.5 when expressed in hundredths.

Front

How do you round 2.76 to the nearest tenth?

Back

To round 2.76 to the nearest tenth, look at the hundredths place (6). Since it is 5 or greater, round up the tenths place (7) to 8, making it 2.8.

Front

What is the place value of the digit 4 in the number 654.86?

Back

In the number 654.86, the digit 4 is in the 'ones' place, which means it represents 4.

Front

What does the symbol '>' mean when comparing numbers?

Back

The symbol '>' means 'greater than'. For example, 6.4 > 0.64 means that 6.4 is greater than 0.64.

Front

What is the decimal representation of four and two tenths?

Back

The decimal representation of four and two tenths is 4.2.

Front

How do you express 0.42 in words?

Back

0.42 is expressed in words as 'forty-two hundredths'.