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 7 - The Number System

Standard 7.NS.1.2 - Solve addition and subtraction sentences with positive and negative decimals.

Included Skills:

Students will be expected to demonstrate an understanding of the addition, subtraction, multiplication, and division of decimals to solve problems (for more than one-digit divisors or more than two-digit multipliers, the use of technology is expected).
Performance Indicators
- N02.01 Use estimation to determine the appropriate place value when calculating the sum or difference.
- N02.02 Use estimation to determine the appropriate place value when calculating the product.
- N02.03 Use estimation to determine the appropriate place value when calculating the quotient.
- N02.04 Represent concretely, pictorially, and symbolically the multiplication and division of decimal numbers.
- N02.05 Create and solve a given problem involving the addition of two or more decimal numbers.
- N02.06 Create and solve a given problem involving the subtraction of decimal numbers.
- N02.07 Create and solve a given problem involving the multiplication of decimal numbers.
- N02.08 Create and solve a given problem involving the division of decimal numbers.
- N02.09 Solve a given problem involving the multiplication or division of decimal numbers with two-digit multipliers or one-digit divisors (whole numbers or decimals) without the use of technology.
- N02.10 Solve a given problem involving the multiplication or division of decimal numbers with more than two-digit multipliers or more than one-digit divisors (whole numbers or decimals) with the use of technology.
- N02.11 Check the reasonableness of solutions using estimation.
- N02.12 Solve a given problem that involves operations on decimals (limited to thousandths), taking into consideration the order of operations.

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