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.

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Math Games for Teachers

Grade 8 - The Number System

Standard 8.NS.1.2 - Practice estimating positive and negative square roots.

Included Skills:

Students will be expected to determine the approximate square root of numbers that are not perfect squares (limited to whole numbers).
Performance Indicators
- N02.01 Estimate the square root of a given number that is not a perfect square, using materials such as square shapes and graph paper and strategies such as using the roots of perfect squares as benchmarks.
- N02.02 Approximate the square root of a given number that is not a perfect square using technology (e.g., a calculator or a computer).
- N02.03 Explain why the square root of a number shown on a calculator may be an approximation.
- N02.04 Identify a number with a square root that is between two given numbers.

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