Worksheet directions

Grade 4 • Review • Choose a strategy for each problem. Explain or check your thinking where requested.

Sample questions

1. 7 × 149 is about 7 × 100 = 700 when rounding 149 to the nearest hundred. Does that prove an answer close to 700 is exact? Explain.
2. A student reports 6 × 387 = 1,822. Round 387 to the nearest hundred to estimate, then calculate exactly. Explain why the report is wrong.
3. Estimate 6 × 387 by rounding 387 to the nearest 100. Keep 6 unchanged. Estimate: ___
4. Estimate 8 × 249 by rounding 249 to the nearest 100. Keep 8 unchanged. Estimate: ___
5. Estimate 38 × 52 by rounding each factor to the nearest ten. Estimate: ___
6. Estimate 5 × 318 by rounding 318 to the nearest 100. Keep 5 unchanged. Estimate: ___

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

Common Core connections

Source labels: 4.NBT.B.5, 4.NBT.A.3. Review the learning goals below to check the fit for your class.

• 4.NBT.B.5 — Multiply up to four digits
• 4.NBT.A.3 — Round multi-digit whole numbers

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.