CH 3 - All Place Value - 1

Front

What is place value?

Back

Place value is the value of a digit depending on its position in a number. For example, in the number 345, the digit 3 is in the hundreds place, so its value is 300.

Front

How do you compare two decimal numbers?

Back

To compare two decimal numbers, align them by the decimal point and compare digit by digit from left to right.

Front

What is expanded form?

Back

Expanded form is a way of writing numbers that shows the value of each digit. For example, 345 in expanded form is (3×100) + (4×10) + (5×1).

Front

Convert 12.44 to expanded form.

Back

12.44 in expanded form is (1×10) + (2×1) + (4×0.1) + (4×0.01).

Front

What does it mean when two numbers are equal?

Back

Two numbers are equal when they represent the same value. For example, 0.999 and 1.0 are equal.

Front

How do you write a number in standard form?

Back

To write a number in standard form, express it as a whole number and a decimal. For example, 'twelve and forty-four hundredths' is written as 12.44.

Front

What is the value of the digit 2 in the number 5.432?

Back

In the number 5.432, the digit 2 is in the hundredths place, so its value is 0.02.

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. For example, 0.75 is written as 75/100, which simplifies to 3/4.

Front

What is the difference between whole numbers and decimal numbers?

Back

Whole numbers are numbers without fractions or decimals (e.g., 0, 1, 2), while decimal numbers include a decimal point (e.g., 1.5, 2.75).

Front

What is the place value of 4 in the number 12.44?

Back

In the number 12.44, the digit 4 is in the tenths place, so its value is 0.4.