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Kindergarten Number and Operations (Base 10)

What Your Child Will Learn

Make or break apart numbers from 11 to 19 into ten ones and some more ones. Use objects or drawings,
and record each with an equation (e.g., 18 = 10 + 8) (K.NBT.1)
Quarter 3 and 4


  • Place Value: The value of the place of the digit in the number (For example: in 27, 2 is in the 10's place and is worth 20)
  • Compose: Putting numbers together to make a new number (For example: 5+10=15)
  • Decompose: Breaking a number apart (For example: 15=8+7)
  • Equation: A mathematical statement containing an equal sign, to show that two expressions are equal
  • Add: To join two or more numbers
  • Subtract: To take one quantity away from another
  • Ten: A group of ten ones


Activities at Home

  • Use a stick of spaghetti to represent 10 and marshmallows to represent ones. Represent the numbers 12, 13, and 16 with the spaghetti and marshmallows.
  • Use a popsicle stick to represent a ten and beans to represent ones. Using a deck of cards, give your child a 10 card, and draw another number card, then add the numbers together and show the number with sticks and beans.
  • Walk from one end of the kitchen to the other and count how many steps, then show how many steps were taken with sticks and beans.

Learning Links

Place Value Blocks

Grouping in 5's and 10's

Teen Number Match

Place Value

Base Ten Blocks

Tens and Ones

Ten Frame Tens and Ones.png
Ten Frame: Tens and Ones

Abacus: Tens and Ones

Kindergarten Common Core

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