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Decimal Place Value with Base Ten Blocks and Grids

Decimal Place Value with Base Ten Blocks and Grids. Base Ten Pieces. Units = ones Rods = tens Flat = hundreds. Use rods to cover a flat. How many rods did you use to cover the flat? If a flat represents 1 whole, then what fraction does one rod represent?

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Decimal Place Value with Base Ten Blocks and Grids

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  1. Decimal Place Value with Base Ten Blocks and Grids

  2. Base Ten Pieces • Units = ones • Rods = tens • Flat = hundreds

  3. Use rods to cover a flat • How many rods did you use to cover the flat? • If a flat represents 1 whole, then what fraction does one rod represent? • What fraction of the flat is 7 rods? • What fraction of the flat is 4 rods?

  4. What decimal number is represented by 10 rods? • What decimal number is represented by 1 flat and 5 rods? • How many tenths are in two wholes? • How would you write 20 tenths using decimal notation? • How many small squares are in a flat?

  5. Which base ten piece would you use to show one hundredth? Why? • How many hundredths does a rod represent? • How would you write 10 hundredths using decimal notation? • Do 0.10 and 0.1 represent the same number? • Explain why 0.10 and 0.1 represent the same number using the base ten blocks.

  6. Write the number that represents 3 flats, 5 rods, and 7 units using decimal notation. 3.57 Write the number that represents 2 flats, 4 rods, and 1 unit using decimal notation. 2.41

  7. Arrange your base ten blocks to show 2.34 Arrange your base ten blocks to show 1.05

  8. Find sheet “Day 14 Base Ten Grids” Find Grid A • How many small squares are on this grid? • What fraction of the grid does each small square represent? • What is the decimal representation for each small square? • What is the decimal representation for each row or each column? • Shade 2 columns and 4 small squares, what decimal have we represented?

  9. Find in your notebook, “Day 14, Blank Base Ten Grids A” Use the Blank Grids to shade each of the following decimals!! Example: 1.82 – You would shade one whole grid PLUS 8 columns and 2 squares 1.05 0.84 2.57 0.04 1.97 2.67

  10. Find sheet “Day 14 Base Ten Grids” AGAIN Look at Grid B • How many tiny rectangles are on this grid? • What fraction of the grid does each tiny rectangle represent? • How do you think we might represent this number using decimal notation? • What do you think this place value is called? Why? • Shade 2 rows, 8 small squares, and 9 tiny rectangles, what decimal have I represented?

  11. Find in your notebook, “Day 14, Blank Base Ten Grids B” Use the Blank Grids to shade each of the following decimals!! Example: 1.823 – You would shade one whole grid PLUS 8 rows, 2 small squares, and 3 tiny rectangles 0.647 1.437 2.418 1.503 0.749 2.376

  12. Homework :) Day 14, “Decimal Place Value Practice

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