Khan Academy Static

Comparing_decimals

Learn to tell which of two decimal numbers is bigger by thinking about place value.

Decimals_in_written_form

Learn how to write decimals like 3.14 in words as "three and fourteen hundredths".

Multiplying_and_dividing_with_powers_of_10

Learn how to shift the decimal point when you multiply and divide by powers of ten.

Multiplying_and_dividing_decimals_by_10_100_and_1000

Learn how to, for example, multiply 34.5 by 100 to get 3450.

Regrouping_decimal_numbers

Let's tackle some more challenging problems that stretch our understanding of decimal place value. These problems involve regrouping place values in interesting ways.

Comparing_decimal_place_values

For a number like 34.135, learn how to compare the 3 in the tens place to the 3 in the hundredths place.

Decimals_in_expanded_form

Learn how to write a decimal like 3.14 in expanded form (3 + 0.1 + 0.04).

Powers_of_10

Learn how exponents are a simpler way to write something like 10x10x10.

Decimal_place_value_intro

Learn the basics of decimal place value.

Rounding_decimals

Learn how to round decimal numbers to specific place values. For example, round 3.14159 to the nearest hundredth as 3.14.

Multiplying_and_dividing_whole_numbers_by_10_100_and_1000

Learn how to, for example, multiply 560 by 100 to get 56,000.