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A poster explaining expanded notation.
Hang this poster on the wall in your classroom when teaching students about expanded notation.
Expanded notation is writing a number to show the value of each digit. It represents a number as the sum of each of its digits multiplied by their place value (ones, tens, hundreds, etc.)
例如：384 = 3 x 100 + 8 x 10 + 4 x 1
= 300 + 80 + 4
= 384
Compose and decompose numbers up to 100,000 as a sum of so many ten thousands, so many thousands, so many hundreds, so many tens, and so many ones using objects, pictorial models, and numbers, including expanded notation as appropriate;
表示数字的值在整个numbers through 1,000,000,000 and decimals to the hundredths using expanded notation and numerals;
使用扩展的符号和数字，通过千分表以小数为单位表示数字的值；
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Strengthen student understanding of fraction models, how to identify fractions on a number line, and determine a fraction of a set with this free worksheet.
探索3位数字和扩展表格时，学生可以在教室里玩有趣的地方价值活动。
Practice adding and subtracting positive and negative numbers with an exciting spreadsheet pixel art activity.
Practice identifying integers on a number line with an exciting Kaboom! Card Game.
Practice locating numbers on a number line with a Google Slides interactive number line activity.
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