Math Games

Grade 4 - Number

Standard 4.N.11 - Choose decimal numbers that add or subtract to a specific number.

Included Skills:

Demonstrate an understanding of addition and subtraction of decimals (limited to hundredths) by:
• using compatible numbers
• estimating sums and differences
• using mental math strategies to solve problems.

• Achievement Indicators
• Students who have achieved this outcome(s) should be able to:
- Predict sums and differences of decimals using estimation strategies.
- Solve problems, including money and measurement, which involve addition and subtraction of decimals, limited to hundredths.
- Ask students to determine which problems do not require an exact solution.
- Determine the approximate solution of a given problem using compatible numbers.
- Determine an exact solution using mental computation strategies.
- Count back change for a given purchase.