Remove ads and gain access to the arcade and premium games!
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.
Need some help or instruction on how to do this skill?
Want a paper copy? Print a generated PDF for this skill.
Share MathGames with your students, and track their progress.
See how you scored compared to other students from around the world.
Learn Math Together.
Grade 1 - Computational Fluency
Standard 1.CF.2.4 - Practice subtracting zero and all from a number. Recognize the similar numbers in subtracting all and zero.
Included Skills:
Addition and subtraction to 20 (understanding of operation and process)
• decomposing 20 into parts
• mental math strategies:
- counting on
- making 10
- doubles
• Addition and subtraction are related.
• whole-class number talks
• nature scavenger hunt in Kaska Counting Book (yukon-ed-show-me-your-math.wikispaces.com/file/detail/Kaska Counting Book.pdf)
If you notice any problems, please let us know.