Students further develop strategies for multidigit addition, subtraction, and two-digit by two-digit multiplication. They explore both mental math and paper-and-pencil methods, solving problems that require exact answers as well as those where estimation is appropriate. Students use computational strategies to develop formulas for finding the area of rectangle and triangles, and the volume of rectangular prisms.
| EXPECTATIONS | |
|---|---|
| Use this list of Expectations to assess students on the key concepts and skills in this unit. | |
| E1* | Demonstrate understanding of the place value concepts and mathematical properties involved in operations with multidigit numbers (e.g., making trades in addition and subtraction, using the distributive property to multiply). |
| E2* | Show connections between models and strategies for multiplication (e.g., demonstrate partial products using a rectangle model for multiplication). |
| E3* | Add and subtract multidigit numbers using more than one strategy. |
| E4* | Multiply multidigit numbers using mental math and paper-and-pencil methods (expanded form, rectangle model, all-partials, compact). |
| E5* | Estimate sums, differences, and products. |
| E6* | Choose appropriately from among mental math, estimation, and paper-and-pencil methods to find sums, differences, and products. |
| E7* | Solve multistep problems using addition, subtraction, multiplication, and division. |
| E8* | Use multiplication and division strategies to find the area of rectangles or shapes based on rectangles. |
| E9* | Use multiplication and division strategies to find the volume of boxes. |
| E10* | Demonstrate fluency with multiplication and division facts for the nines. |
| * Denotes Benchmark Expectation | |