Study Guide — K.OA.A.2
Word problems within 10
Short word problems with objects and drawings — within 10.
What this standard means
- Solve join and separate stories within 10
- Use objects or drawings to represent
- Write an equation that matches the story
- Explain what the answer means
_See printable PDF for diagram._
How to use the 20 practice sets
| Sets | When to use | | --- | --- | | 1–5 | Intro — explore together, short written items | | 6–10 | Core skills — diagrams and written practice | | 11–15 | Mixed review — explain thinking | | 16–20 | Stretch — word problems and mastery tasks |
Pacing: 10–15 minutes per session.
How to practice
1. Read the story twice 2. Draw a simple picture before computing 3. Ask “What are we trying to find?”
_See printable PDF for diagram._
Common mistakes
- Adding when the story is subtraction
- Ignoring part of the story
- Answer without a unit (just a number)
Review and practice tests
1. Start Review 1/10 when sets 1–3 feel comfortable. 2. Move up one review level with little help. 3. Use Practice Test 4/10–6/10 for mid-standard checks. 4. Practice Test 10/10 is the mastery bar for K.OA.A.2.
- [ ] Solves join/separate within 10
- [ ] Drawing matches the story
- [ ] Equation matches the model
Materials for this standard
- Practice Problems — 20 printable sets
- Review — 10 difficulty levels
- Practice Test — 10 difficulty levels
- Answer key — for parents and tutors