WEBVTT
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The rectangle below represents one whole.
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What decimal is represented by the shaded area?
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This rectangle represents one whole.
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To find the decimal for the shaded area, we first need to find out how many pieces the whole is broken into.
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We can start counting: one, two, three, four, five, six, seven, eight, nine, 10.
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Our whole is broken into tenths.
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Nine out of the 10 are shaded.
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As a fraction, we write that nine over 10 — nine tenths.
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In our place value system, we have the ones and then a decimal and then the tenths place.
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Since this image tells us we have nine tenths, we put a nine in the tenths place.
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We have zero whole numbers.
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We don’t have a whole.
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So a zero goes in the ones place.
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The rectangle represents nine tenths.
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And as a decimal, we write that 0.9 — nine tenths.