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.

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.

More Ways To Use Math Games
Game Quickplay
Video Help

Need some help or instruction on how to do this skill?

Offline Worksheets

Want a paper copy? Print a generated PDF for this skill.

Top Mathematicians Leaderboards

See how you scored compared to other students from around the world.

Start a MathJam

Learn Math Together.

Math Games for Teachers

Grade 1 - Number

Standard 1.N.9 - Practice solving subtraction sentences to make a specific number.

Included Skills:

Describe and use mental mathematics strategies for basic addition facts and related subtraction facts to 18.
Achievement Indicators:
- 1N9.1 Use and describe a mental mathematics strategy for determining a given sum.
- 1N9.2 Use and describe a mental mathematics strategy for determining a given difference.
- 1N9.3 Use and describe mental mathematics strategies, such as:
counting on and counting back
making 10
using doubles
thinking addition for subtraction.
- 1N9.4 Refine mental mathematics strategies to increase their efficiency.

If you notice any problems, please let us know.