Decimal Number Line Reasoning

Shows how to round decimals using a number line, visually showing which whole number, tenth, hundredth, or thousandth is closest. Builds off intuition of rounding rules and connects rounding to the nearest place value on the number line.

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A series of videos and interactive exercises. Really clearly shows the number line and goes through placing 10ths and 100ths on it.

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A real life interactive example about working with textiles (building cushions) and how to accurately measure decimals along a number line (i.e. a ruler)

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