HBS Math Support

Decimals

Videos

Graphing tenths – Khan Academy
Graphing hundredths – Khan Academy
Decimal place value - Math Antics
Comparing decimals – Khan Academy
Represented in different ways – Khan Academy
Comparing decimals visually – Khan Academy
Rounding decimals – Khan Academy
Rounding decimal – LearnZillion
Writing numbers as fractions or decimals – Khan Academy
Fraction to decimals - Math Antics
Converting fractions to decimals – Khan Academy
Rewriting decimals as fractions – Khan Academy
Writing decimals and fractions shown on number line – Khan Academy
Explore the relationship between fraction, decimals and percents – PBS

Worked example: Rounding decimals to nearest tenth (video) | Khan AcademyLearn to round 9.564 to the nearest tenth.

Comparing decimals visually (video) | Khan AcademySal compares 0.17 and 0.2 using grid diagrams.

Rewriting decimals as fractions: 0.15 (video) | Khan AcademyDecimals can be written in fraction form. To convert a decimal to a fraction, place the decimal number over its place value. For example, in 0.6, the six is in the tenths place, so we place 6 over 10 to create the equivalent fraction, 6/10. If needed, simplify the fraction.

Graphing tenths from 0 to 1 (video) | Khan AcademyLindsay graphs 0.6 on a number line.

Worked example: Rounding decimals to nearest tenth (video) | Khan AcademyLearn to round 9.564 to the nearest tenth.

Writing decimals and fractions shown on number lines (video) | Khan AcademySal writes decimal numbers and fractions greater than 1 shown on number lines. Decimals are limited to tenths and hundredths.

Comparing decimals: 9.97 and 9.798 (video) | Khan AcademySal compares 9.97 and 9.798 using place value.

Writing a number as a fraction and decimal (video) | Khan AcademySal shows the connection between decimals and fractions using a grid diagram and number lines.

Explore the Relationship Among Fractions, Decimal Notation, and Percents | PBS LearningMediaIn this Cyberchase media gallery, a series of videos explores the relationships among fractions, decimals, and percents, which can be used to represent the same values in different ways. In the accompanying classroom activity, students shade in parts of squares and rectangles drawn on a piece of graph paper and express the shaded amount in the form of a fraction, a decimal, and a percent. This resource is part of the Math at the Core: Middle School Collection.

Comparing numbers represented different ways (video) | Khan AcademyExamples of Khan Academy practice problems where you compare decimals, fractions, and number diagrams.

Fraction to decimal: 11/25 (video) | Khan AcademySal writes 11/25 as a decimal.

Virtual Manipulatives

Decimal Squares - Albert B. Bennet Jr.
Decimal Strips – Toy Theater

Decimal Strips | Free Virtual Manipulatives | Toy TheaterColorful decimal strips to help students visualize and model decimal relationships.

Practice

Online Games

Teacher Resources

Teaching Decimal Place Value - Math Coach

Vocabulary

Decimal point
Tenth
Hundredth

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