### Multiplying Decimals using the Grid Method

Students learn about multiplying decimals using the grid method. Throughout the lesson students are encouraged to estimate solutions and compare their estimate to the actual product.The start of the lesson is used to develop students' numerical reasoning. In the main part they learn how to use the grid method to multiply a pair of decimals or integers. More able students are challenged to calculate the square and cube of decimals. At the end, students are challenged to complete a cross-number puzzle.

### Differentiated Learning Objectives

- All students should be able to calculate the product of a decimal and integer.
- Most students should be able to calculate the product of two, two digit decimal numbers.
- Some students should be able to calculate the square and cube of a decimal number.

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