Kindergarten · Math
Missing Numbers to 20
Free printable Kindergarten math worksheet: Missing Numbers to 20. It lines up with Common Core K.CC.A.2. For ages 5-6. Download the PDF, print it, or fill it in online.
Fill in or color online- Grade
- Kindergarten
- Subject
- Math
- Ages
- 5–6
- Standard
- K.CC.A.2
- Format
- A4 PDF · print or fill in online
About this worksheet
“Missing Numbers to 20” is sheet 11 of 29 in our free Kindergarten Math Worksheets collection, written for children aged 5–6.
In the set it comes after “Teen Numbers in Ten Frames” and before “Adding Within 5”. Working through them in that order, one sheet a day, builds the skill a step at a time.
What this worksheet practices
K.CC.A.2 · Common Core Math · Kindergarten
Counting & Cardinality
Children work on knowing the number names and the counting sequence, counting to tell how many objects there are, and comparing numbers.
How to use this worksheet
- 1
Do "Make 10" before any addition sheet, not after. Number bonds to ten are what make first-grade addition fast, and children who learn them late end up counting on fingers for another year.
- 2
For "Adding with Pictures", cover the answer box and ask your child to say the whole sentence out loud — "three and two make five". Saying it is what moves it into memory.
- 3
Print "Counting by Tens" twice. It is the one sheet on this list worth repeating, because skip counting is the foundation of place value in 1st grade.
- 4
Let them use physical objects. Buttons or pasta next to the sheet is not cheating at this age; the picture on the page is a stand-in for objects, and the objects work better.
