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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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Grade 4 - The Number System

Standard 4.NS.1.3 - Simplify both sides of the equation. Fill in the missing number with sums up to 1000 to make the equation true.

Included Skills:

Students will be expected to demonstrate an understanding of addition and subtraction of numbers with answers to 10 000 (limited to three- and four-digit numerals) by

• using personal strategies for adding and subtracting

• estimating sums and differences

• solving problems involving addition and subtraction

• Performance Indicators

- N03.01 Represent concretely, pictorially, and symbolically the addition and subtraction of whole numbers, limited to three and four-digit numerals.

- N03.02 Determine the sum of two given numbers, limited to three and four-digit numerals, using a personal strategy, and record the process symbolically.

- N03.03 Determine the difference of two given numbers, limited to three- and four-digit numerals, using a personal strategy, and record the process symbolically.

- N03.04 Describe a situation in which an estimate rather than an exact answer is sufficient.

- N03.05 Estimate sums and differences using different strategies.

- N03.06 Create and solve problems that involve addition and subtraction of two or more numbers, limited to three- and four-digit numerals.

- N03.07 Explain mental mathematics strategies that could be used to determine a sum or difference.

- N03.08 Determine a sum or difference of one, two, and three-digit numerals efficiently, using mental mathematics strategies.

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