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 3 - Number

Standard 3.N.10 - Practice applying specific properties of multiplication to solve an equation.

Included Skills:

Apply mental mathematics strategies and number properties, such as:

• using doubles

• making 10

• using the commutative property

• using the property of zero

• thinking addition for subtraction

to recall basic addition facts to 18 and related subtraction facts.

• Achievement Indicators

• Students who have achieved this outcome(s) should be able to:

- Describe a mental mathematics strategy that could be used to determine a given basic fact, such as:

• doubles, e.g., for 6 + 8, think 7 + 7

• doubles plus one, e.g., for 6 + 7, think 6 + 6 + 1

• doubles take away one, e.g., for 6 + 7, think 7 + 7 – 1

• doubles plus two, e.g., for 6 + 8, think 6 + 6 + 2

• doubles take away two, e.g., for 6 + 8, think 8 + 8 – 2

• making 10, e.g., for 6 + 8, think 6 + 4 + 4 or 8 + 2 + 4

• commutative property, e.g., for 3 + 9, think 9 + 3

• addition to subtraction, e.g., for 13 – 7, think 7 + ? = 13.

- Provide a rule for determining answers for adding and subtracting zero.

- Recall basic addition facts to 18 and related subtraction facts to solve problems.

If you notice any problems, please let us know.