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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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Grade 4 - Number
Standard 4.N.2 - Analyze the sequence of increasing addition sentences. Find the missing numbers that complete the sequence.
Included Skills:
Demonstrate an understanding of addition of whole numbers with answers to 10 000 and their corresponding subtractions (limited to 3 and 4- digit numerals) by: using personal strategies for adding and subtracting, estimating sums and differences, solving problems involving addition and subtraction.
• Explain how to keep track of digits that have the same place value when adding or subtracting numbers.
• Describe a situation in which an estimate rather than an exact answer is sufficient.
• Estimate sums and differences using different strategies (e.g., front-end estimation and compensation).
• Explain the strategies used to determine a sum or difference.
• Solve problems that involve addition and subtraction of more than two numbers.
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