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SubscribeUnlock 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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Grade 2 - Computational Fluency
Standard 2.CF.2.4 - Solve addition sentences with 3 or 4 numbers.
Included Skills:
addition and subtraction to 100
• decomposing numbers to 100
• estimating sums and differences to 100
• using strategies such as looking for multiples of 10, friendly numbers (e.g., 48 + 37, 37 = 35 + 2, 48 + 2 = 50, 50 + 35 = 85), decomposing into 10s and 1s and recomposing (e.g., 48 + 37, 40 + 30 = 70, 8 +7 = 15, 70 +15 = 85), and compensating (e.g., 48 + 37, 48 +2 = 50, 37 – 2 = 35, 50 + 35 = 80)
• adding up to find the difference
• using an open number line, hundred chart, ten-frames
• using addition and subtraction in real-life contexts and problem-based situations
• whole-class number talks
If you notice any problems, please let us know.