Worksheet directions

Grade 4 • Independent Practice • Work on your own. Show your calculations or reasoning where needed.

Sample questions

1. Find 70,042 - 28,657. First round each number to the nearest 1,000 to estimate. Then calculate exactly. Estimate: ___ Exact answer: ___
2. Find 800,000 - 356,789. First round each number to the nearest 10,000 to estimate. Then calculate exactly. Estimate: ___ Exact answer: ___
3. Find 1,000,000 - 1. 1,000,000 - 1 = ___
4. Find 600,304 - 278,956. 600,304 - 278,956 = ___
5. Both rows represent the same number. Explain each exchange and write the number. How could this exchange help with addition or subtraction? Answer: ___
6. Find 90,403 - 45,876. First round each number to the nearest 1,000 to estimate. Then calculate exactly. Estimate: ___ Exact answer: ___

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

Common Core connections

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

• 4.NBT.B.4 — Fluently add and subtract multi-digit

Bring it into your lesson

Open this worksheet in Sparkclass to copy it to your Files. Check the resulting layout before sharing it with students.