Representing Decimals


The above pictures show the common Base-10 Blocks.

Can you use the following block combinations to represent 37.2?  (Explain why or why not)

  • 3 Blocks, 7 Rods, and 2 Cubes
  • 3 Rods, 7 Flats, and 2 Blocks
  • 37 Rods, 2 cubes
  • 37 Flats, 2 rods

Is there another way to use the Base-10 blocks to represent 37.2?

Which combinations could you use to represent 3.72?

Which combinations could you use to represent 0.372?

What do all of these combinations have in common? How are they different?

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