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Represent 10 using a number bond and 10-frame to help solve a Mystery Math Mistake. Use Notice and Wonder with an unbalanced see-saw to tell whether two expressions are equal. Then, practice with telling whether two expressions are equal (balanced).

Math Mights was adapted from IM K-5 Math™ ©2021 by Illustrative Mathematics®, released under the Creative Commons Attribution 4.0 International License (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/.

Additions and adaptations are ©2021 by Strategic Intervention Solutions, LLC.

Math Mights - 3rd GradeMeasuring with Halves or Fourths
Math Mights - 2nd GradeSubtract a 1-Digit from a 2-Digit Number

Related Lessons

  • Lesson 103

    Build, read, write (in standard and expanded form), and represent three-digit numbers using base-10 blocks and symbols. Describe the value of a digit, including 0, based on its place in the number.

  • Lesson 104

    Compare two or more three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols. Build, read, write (in standard and expanded form), and represent three-digit numbers using base-10 blocks and symbols.

  • Lesson 105

    Build, read, write (in standard and expanded form), and represent four-digit numbers using base-10 blocks and symbols. Compare numbers based on meanings of the thousands, hundreds, tens, and ones digits using symbols.