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Khan Academy

Khan Academy: Rounding Decimals

For Students 3rd - 5th Standards
In this exercise, students practice rounding decimals. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Handout
Purple Math

Purplemath: Rounding and Significant Digits

For Students 3rd - 5th Standards
Explains how to round to a given number of "significant digits".
Interactive
Calculator Soup

Calculator Soup: Rounding Numbers Calculator

For Students 9th - 10th
Rounding calculator teaches how to round numbers up or down to any decimal place. Choose ones to round a number to the nearest dollar. Choose hundredths to round an amount to the nearest cent.
Interactive
Calculator Soup

Calculator Soup: Round to Nearest Multiple Calculator

For Students 9th - 10th
Use this rounding calculator to round a number to the nearest multiple. You can round a number up or down to the nearest 2, 4, 5, 10, 50, etc. You can also round to the nearest tenth, hundredth, thousandth, etc. multiple in a decimal place.

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