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 - Number
Standard 1.N.10 - Practice subtracting zero and all from a number. Recognize the similar numbers in subtracting all and zero.
Included Skills:
Describe and use mental mathematics strategies for basic addition facts and related subtraction facts to 18.
• Use and describe a mental mathematics strategy for determining a given sum.
• Use and describe a mental mathematics strategy for determining a given difference.
• Use and describe mental mathematics strategies, such as:
- counting on and counting back.
- making 10.
- using doubles.
- thinking addition for subtraction.
• Refine mental mathematics strategies to increase their efficiency.
• Write the related subtraction fact for a given addition fact.
• Write the related addition fact for a given subtraction fact.
• Demonstrate understanding and application of strategies for addition facts up to and including 9 + 9 and related subtraction facts.
• Demonstrate recall/memorization of addition facts to a sum of 5 and related subtraction facts.
If you notice any problems, please let us know.