Kindergarten · Math · Counting · Challenge
12 counting tasks; answer key.
- Questions
- 12
- Pages
- 3
- Paper
- letter
- Answer key
- Included
Common Core standards practiced
- K.CC.A.2 Count forward from a given number
- K.CC.B.5 Count to tell how many objects

Answer key included on page 3.
What students practice
This Kindergarten challenge counting worksheet contains 12 complete items. Learners count backward by ones or fill two missing numbers in a forward sequence within 20.
PDF and answer key
The 3-page US Letter PDF has 2 activity pages followed by a complete answer key on page 3. The preview shows the first activity page.
How to use this worksheet
Ask the learner to complete every item before checking the answer key. For missed items, check each adjacent pair differs by one in the stated counting direction.