Worksheet directions

Grade 1 • Review • Choose a strategy for each problem. Explain or check your thinking where requested.

Sample questions

1. Which helps solve 9 + 4: 9 + 1 or 9 + 4? Explain. Helpful fact: ___
2. Ava says 7 + 6 = 14. Use a drawing or words to fix her answer. 7 + 6 = ___
3. Write a related subtraction fact for 6 + 7 = 13. 13 - ___ = ___
4. Start at 9 and count on 6. Where do you land? 9 + 6 = ___
5. There are 8 yellow beads and 5 green beads. Show a way to make a ten and find the total. 8 + 5 = ___
6. Solve and explain: 46 − 10. 46 - 10 = ___

See the preview for diagrams, answer spaces, and the complete layout.

Common Core connections

Source labels: 1.OA.C.5, 1.OA.C.6, 1.OA.B.4, 1.NBT.C.5, 1.NBT.C.4. Review the learning goals below to check the fit for your class.

• 1.OA.C.5 — Relate counting to addition and subtraction
• 1.OA.C.6 — Add and subtract within 20
• 1.OA.B.4 — Understand subtraction as an unknown addend
• 1.NBT.C.5 — Mentally find 10 more or 10 less
• 1.NBT.C.4 — Add within 100

Bring it into your lesson

Review the preview and question content above. Open the resource in Sparkclass to copy it to your Files and use it in your workspace. Check the resulting layout before sharing it with students.