Khan Academy
Khan Academy: Rewriting Decimals as Fractions: 0.15
Sal Khan teaches rewriting decimals as fractions.
Khan Academy
Khan Academy: Comparing Decimal Numbers on a Number Line
Sal Khan compares decimals on a number line.
Khan Academy
Khan Academy: Comparing Numbers Represented Different Ways
Examples of Khan Academy practice problems where you compare decimals, fractions, and number diagrams.
Khan Academy
Khan Academy: Comparing Decimals Visually
Sal Khan compares decimals 0.17 and 0.2 visually using grid diagrams.
Khan Academy
Khan Academy: Comparing Decimals (Tenths and Hundredths)
Sal Khan compares decimals like 0.7 and 0.09 with greater and less than symbols.
Khan Academy
Khan Academy: Rewriting Fractions as Decimals
The teacher rewrites two fractions as decimals. The fractions have denominators of 10 and 100.
Khan Academy
Khan Academy: Decimal Place Value
Sal Khan introduces decimal numbers and understanding place value to the right of the decimal.
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Khan Academy: Relating Decimals and Fractions in Words
Sal Khan relates equivalent decimals and fractions written in word form.
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Khan Academy: Plotting Decimal Numbers on a Number Line
Sal Khan finds decimals with hundredths on a number line.
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Khan Academy: Decimal Place Value With Regrouping
Sal Khan discusses decimal numbers that are greater than 1.
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Khan Academy: Identifying Hundredths on a Number Line
The teacher identifies decimals graphed on a number line.
Khan Academy
Khan Academy: Decimals as Words
Sal Khan writes 0.17 and 40.03 in words. He also writes twenty-four hundredths using numbers.
Khan Academy
Khan Academy: Decomposing Hundredths on Number Line
Sal decomposes 26/100 into tenths and hundredths using a number line.
Khan Academy
Khan Academy: Rewriting Decimals as Fractions: 2.75
Here's an example of how Sal Khan converts a decimal to a simplified fraction.
Khan Academy
Khan Academy: Writing Decimals and Fractions Greater Than 1 Shown on Grids
Sal writes decimal numbers and fractions greater than 1 shown on grids. Decimals are limited to tenths and hundredths.
Khan Academy
Khan Academy: Strategies for Subtracting More Complex Decimals With Tenths
Sal uses place value and decomposing numbers to subtract decimals to the tenths place, such as 2-1.2.
Khan Academy
Khan Academy: Strategies for Subtracting Basic Decimals
Sal uses place value and a number line to subtract decimals, such as 1.5-0.7.
Khan Academy
Khan Academy: Estimating Decimal Subtraction
Estimate to find reasonable solutions to addition subtraction problems.
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Khan Academy: Subtraction Strategies With Hundredths
Sal uses place value and decomposing numbers to subtract decimals, such as 65.79-42.58.
Khan Academy
Khan Academy: Subtracting Decimals: 9.57 8.09
Sal subtracts 9.57-8.09 using 'standard algorithm'.
Khan Academy
Khan Academy: More Advanced Subtraction Strategies With Hundredths
Sal uses place value and numbers in expanded form to subtract decimal to hundredths, such as 8.38-4.54.
Khan Academy
Khan Academy: Subtracting Decimals: 10.1 3.93
Sal subtracts 10.1-3.93 using 'standard algorithm'.
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Khan Academy: Multiplying and Dividing by Powers of 10
Sal multiplies and divides decimals by powers of 10.