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 - The Number System
Standard 1.NS.1.10 - Complete the addition or subtraction sentence by filling in the blank.
Included Skills:
Students will be expected to use and describe strategies to determine sums and differences using manipulatives and visual aids. Strategies include
• counting on or counting back
• one more or one less
• making ten
• doubles
• near doubles
• Performance Indicators
- N10.01 Use and describe a personal strategy to determine a sum.
- N10.02 Use and describe a personal strategy to determine a difference.
- N10.03 Use and describe how two different strategies can be used to determine a sum or difference.
If you notice any problems, please let us know.