How to use this sheet

  • Have base ten blocks, or bundles of ten straws, for the first sheet. A child who can build 34 understands the digits.
  • Ask the child to say each number as tens and ones: "34 is 3 tens and 4 ones."
  • For expanded form, read it back as a sum to check: 30 + 4 makes 34.

Common mistakes

  • Writing 3 tens and 4 ones as 7, by adding the digits. Ask how many cubes there are in 3 rods.
  • Writing a number with no ones, such as 6 tens, as 6. Explain that the 0 holds the ones place: 60.
  • Writing 3 hundreds, 0 tens and 5 ones as 35. Use a place value chart so every place gets a digit.

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