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Common Core 1.NBT.2

Understand that the two digits of a two-digit number represent tens and ones.

1st Grade · Number & Operations in Base Ten
Ten and Some More
1st Grade · Math
6 versions
Take Away 10 from Teen Numbers
1st Grade · Math
6 versions

What 1.NBT.2 covers

Understand that the two digits of a two-digit number represent tens and ones. This Common Core standard sits in the Number & Operations in Base Ten domain for 1st Grade. Below are 2 free, printable worksheets that give kids targeted practice on this exact skill, each with a free answer key.

How to use these worksheets

Print a set for homework or classroom practice. Each worksheet comes in multiple versions, so children can repeat the same skill with fresh questions until it sticks.