1.4 Números hasta 99

Unit Goals

  • Students develop an understanding of place value for numbers up to 99.

Section A Goals

  • Add and subtract multiples of 10.
  • Represent the base-ten structure of multiples of 10 up to 90 using towers of 10, drawings, numbers, or words.

Section B Goals

  • Add and subtract multiples of 10.
  • Represent the base-ten structure of numbers up to 99 using drawings, numbers, and words.
  • Understand that the two digits of a two-digit number represent amounts of tens and ones.

Section C Goals

  • Compare 2 two-digit numbers based on the values of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.>

Section D Goals

  • Represent two-digit numbers in different ways, using different amounts of tens and ones.
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Teacher presentation materials (with Spanish)

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Task statements for students to write on (with Spanish)

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Family Support Materials (with Spanish)

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