← All Standards

Grade 2

• Geometry

  • 2.G.1
  • 2.G.2
  • 2.G.3

• Measurement & Data

  • 2.MD.1
  • 2.MD.2
  • 2.MD.3
  • 2.MD.6
  • 2.MD.8
  • 2.MD.9
  • 2.MD.10

• Numbers & Operations: Base Ten

  • 2.NBT.1.a
  • 2.NBT.1.b
  • 2.NBT.1
  • 2.NBT.2
  • 2.NBT.3
  • 2.NBT.4
  • 2.NBT.5
  • 2.NBT.6
  • 2.NBT.7
  • 2.NBT.8
  • 2.NBT.9

• Operations & Algebraic Thinking

  • 2.OA.1
  • 2.OA.2
  • 2.OA.3
  • 2.OA.4

CCSS Math Standard: 2.NBT.8

mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900

What If There Were No Hundreds Place?

Imagine a world with no hundreds place. We’d have to call it ten tens instead. But then, what would we call the thousands place? How would we read 9999? What if we added one more?

Gr 1, 2, 3, 4, 5, 8