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.

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Math Games for Teachers

Grade 1 - Number

Standard 1.N.10 - Practice solving subtraction sentences to make a specific number.

Included Skills:

Describe and use mental mathematics strategies including
counting on, counting back
using one more, one less
making 10
starting from known doubles
using addition to subtract
to determine the basic addition and related subtraction facts to 18.

(It is intended that students show their understanding of strategies using manipulatives, pictorial representations, and/or patterns when determining sums and differences.)
Use and describe a mental mathematics strategy for determining a sum.
Use and describe a mental mathematics strategy for determining a difference.
Use and describe the related addition facts for a subtraction fact (fact family) (e.g., 6 – 4 = 2 has two related addition facts: 4 + 2 = 6, 2 + 4 = 6).
Use and describe related subtraction facts for an addition fact (fact family) (e.g., 2 + 3 = 5 has two related subtraction facts: 5 – 3 = 2, 5 – 2 = 3).

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