Practice question

1. A student says 45 + 18 = 53. Correct the answer. Correct answer: ___

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

Common Core connections

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

• 1.NBT.C.4 — Add within 100
• 1.NBT.C.5 — Mentally find 10 more or 10 less
• 1.NBT.C.6 — Subtract multiples of 10

Bring it into your lesson

Open this problem in Sparkclass to add it to a worksheet. Check the resulting layout before sharing it with students.