Break Apart Numbers to Subtract

Break apart numbers to make subtraction easier!

2nd Grade - Math - Subtract within 100

About This Skill

On Iqleel, Grade 2 students will learn to break apart numbers to subtract. They will use mental math strategies to decompose the number being subtracted into smaller parts—often to get to a ten—making the calculation easier. This approach builds procedural reliability and strengthens understanding of place value.

Skills & Topics

  • Number Sense and Operations
  • Whole Numbers
  • Place Value
  • Subtraction
  • Subtract
  • Equations
  • Partitioning
  • Minus Sign
  • 2-Digit Numbers
  • Mental Math

Curriculum Alignment

  • AC9M2N04: add and subtract one- and two-digit numbers, representing problems using number sentences and solve using part-part-whole reasoning and a variety of calculation strategies
  • ENG-MATH-Y2-AS.2: Solve problems with addition and subtraction by applying their increasing knowledge of mental and written methods.
  • NY-2.NBT.5
  • 2.NBT.B.5: Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
  • 2.NBT.B.5
  • MA.2.NSO.2.3
  • MATH.2.4.B
  • G2.B2.4
  • BC.MATH.G2.CONTENT.04
  • AB.MATH.G2.MAT2-OI1-GQ2-LO1
  • ZA.CAPS.MATH.G2.NOR.1.12
  • SG.MATH.P2.NA.WN.2.1

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