Teen Numbers: A Ten and Some Ones

1.NBT.2 — Understand two-digit numbers as tens and ones, including 10 as a bundle of ten ones and multiples of ten

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What is on the three Teen Numbers: A Ten and Some Ones worksheets

Support: draws base-ten blocks beside every problem.
On level: The grade's own level, with no drawings.
Challenge: drops the familiar layout.

Example problems from the on-level sheet

Write 14 in hundreds, tens and ones
Write 16 in hundreds, tens and ones
Write 18 in hundreds, tens and ones

Every sheet is generated, so the numbers are different each time you make one.

Before this: K.NBT.1 — compose and decompose numbers from 11 to 19 into ten ones and some further ones, recording each with a drawing or equation; 1.NBT.1 — count to 120 starting at any number; read, write, and represent numerals.