Common Core Math: Kindergarten: Numbers in Base Ten

In kindergarten, students start developing an understanding of place value in base 10 by working with numbers up to 19. Students decompose numbers from 11 to 19 into 10 plus additional 1s and, likewise, create numbers from 11 to 19 by adding the relevant one-digit number to 10. Students represent their thinking visually and with equations.

Common Core Standards

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CCSS.Math.Content.K.NBT.A.1
kindergarten common core standard NBT.A.1

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kindergarten number and operations in base ten common core standards

Place Value

Compose and decompose numbers into 10s and 1s.

Decompose a number into 10s and 1s (CCSS.Math.Content.K.NBT.A.1):

place values of 14
value of the digit 1 in 12
17 - 10

Compose a number with 10 (CCSS.Math.Content.K.NBT.A.1):

10 + 8
add 5 to 10

更进一步

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相关示例

  • Common Core Math: Kindergarten
  • Common Core Math: Numbers in Base Ten
  • Elementary Math