Worksheet directions

Grade 1 • Guided Practice • Work with your teacher or a partner. Discuss the model or strategy, then complete each problem.

Sample questions

1. Use 10 to solve 8 + 5. Show how you break apart 5. 8 + 5 = ___
2. There are 13 beads. Move 5 beads away. How many beads stay? 13 - 5 = ___
3. Start at 14. Jump back 3 on the number line. Where do you land? 14 - 3 = ___
4. A ten-frame has 8 counters. How many more counters fill the frame? 8 + ___ = 10
5. Write a related subtraction fact for 6 + 7 = 13. 13 - ___ = ___
6. Start at 9 and count on 6. Where do you land? 9 + 6 = ___

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.