Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level
The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.
Green box means correct.
Yellow box means incorrect.

Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level
The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.
Green box means correct.
Yellow box means incorrect.

More Ways To Use Math Games
Game Quickplay
Video Help

Need some help or instruction on how to do this skill?

Offline Worksheets

Want a paper copy? Print a generated PDF for this skill.

Top Mathematicians Leaderboards

See how you scored compared to other students from around the world.

Start a MathJam

Learn Math Together.

Math Games for Teachers

Grade 5 - Number

Standard 5.N.2 - Round a given number to a specified place value.

Included Skills:

Use estimation strategies including:
front-end rounding
compensation
compatible numbers
in problem-solving contexts.

Achievement Indicators
- Provide a context for when estimation is used to:
make predictions
check reasonableness of an answer
determine approximate answers.
- Describe contexts in which overestimating is important.
- Determine the approximate solution to a given problem not requiring an exact answer.
- Estimate a sum or product using compatible numbers.
- Estimate the solution to a given problem using compensation and explain the reason for compensation.
- Select and use an estimation strategy for a given problem.
- Apply front-end rounding to estimate:
sums, e.g., 253 + 615 is more than 200 + 600 = 800
differences, e.g., 974 – 250 is close to 900 – 200 = 700
products, e.g., the product of 23 × 24 is greater than 20 × 20 (400) and less than 25 × 25 (625)
quotients, e.g., the quotient of 831 ÷ 4 is greater than 800 ÷ 4 (200).

If you notice any problems, please let us know.