Early MathBefore, after, and between for numbers up to 20
Write the number that belongs in each blank.
Knowing which number comes next is what turns counting into real number sense. These free printable worksheets give a number up to twenty with a blank before it, after it, or between two numbers, and ask a child to fill the missing neighbor.
If they get stuck

The answer key prints on a separate page.
Each question leaves one spot empty — the number before, the number after, or the one that fits between two — and the child writes it in. The three kinds are mixed evenly so a child reads each question before answering rather than repeating one move, and every number stays at twenty or below.
This is an early skill, so the page stays short — a handful of questions is enough focused practice for a young child.
One question from a sheet like this one, worked a step at a time — with a sentence saying what just happened and why.
Before, after, and between, step by step