Estimation & Large Numbers

Estimate the sum of 4567 and 2894.

• 8500

• 7000

• 7500

• 8000

Round 7389 to the nearest ten.

• 7400

• 7395

• 7390

• 7388

Compare 5678 and 6789. Which is greater?

• 6798

• 5689

• 5678

• 6789

Order the numbers 9876, 5432, and 6543 from least to greatest.

• 6543, 5432, 9876

• 5432, 9876, 6543

• 5432, 6543, 9876

• 9876, 6543, 5432

Add 3456 and 7890 mentally.

• 12345

• 45678

• 23456

• 11346

Subtract 9876 from 23456 without using paper.

• 12345

• 14580

• 21000

• 30000

Estimate the product of 1234 and 5678.

• 5,000,000

• 7,000,000

• 6,000,000

• 8,000,000

Round 98765 to the nearest ten.

• 98760

• 98780

• 98770

• 98750

Compare 34567 and 45678. Which is smaller?

• 34567

• 34568

• 34566

• 45678

Order the numbers 87654, 23456, and 76543 from greatest to least.

• 87654, 76543, 23456

• 23456, 87654, 76543

• 23456, 76543, 87654

• 76543, 23456, 87654