Why parents choose SplashLearn for their first graders?

  • Personalised Learning

    Intelligently adapts to the way each child learns

  • Fun Rewards

    Get coins for each correct answer and redeem coins for virtual pets

  • Actionable Reports

    Monitor progress with iPhone app, weekly emails and detailed dashboards

3.

Decompose Numbers Less than 20 into Tens and Ones

- 1st Grade Math
Numbers up to 20 Worksheet
Practice Now

Students develop the understanding of place value concepts by learning that a 2 digit number is a number made up of tens and ones. In Numbers up to 20 Worksheet, students work on numbers from 11 to 19 and understand that the numbers from 11 to 19 are composed of 1 ten and 1,2,3,..9 ones.

Common Core Alignment

1.NBT.2Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:

1.NBT.2.bThe numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.