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Say it With Symbols

Before Class Work. Say it With Symbols . Math Reflections Investigation 1. When an expression involves addition, subtraction, and multiplication, in what order should you perform the order of operations?. p = 100 + 10a - 8c. p = (100 + 10)a - 8c.

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Say it With Symbols

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  1. Before Class Work Say it With Symbols Math Reflections Investigation 1

  2. When an expression involves addition, subtraction, and multiplication, in what order should you perform the order of operations? p = 100 + 10a - 8c p = (100 + 10)a - 8c

  3. When an expression involves division and other operations such as addition, subtraction, and multiplication, in what order should you perform the order of operations? A = 2.50V – 500 V A = 2.50V – 500 V

  4. When an expression involves exponents and other operations such as addition, subtraction, and multiplication, in what order should you perform the order of operations? 2 A = 2.50V – 500 2 A = (2.50V – 500)

  5. Say it With Symbols Math Reflections Investigation 1 Answers

  6. When an expression involves addition, subtraction, and multiplication, in what order should you perform the order of operations? p = 100 + 10a - 8c p = (100 + 10)a - 8c Multiplication is performed before addition and subtraction unless there are parentheses around addition or subtraction.

  7. When an expression involves division and other operations such as addition, subtraction, and multiplication, in what order should you perform the order of operations? A = 2.50V – 500 V A = 2.50V – 500 V If part of the problem needs to be divided, do any multiplication and division from left to right first. If the entire problem is being divided, division will be the last step.

  8. When an expression involves exponents and other operations such as addition, subtraction, and multiplication, in what order should you perform the order of operations? 2 A = 2.50V – 500 2 A = (2.50V – 500) Unless there are parentheses around the section being raised to a certain power, exponents are performed before any of the four operations..

  9. Say It With Symbols Investigation 2.1 Tiling Pools Page 20-21

  10. Tiling Pools • Hot tubs and in-ground swimming pools are sometimes surrounded by borders of tiles. This drawing shows a square hot tub with sides of length 5 feet surrounded by square border tiles. The border tiles measure 1 foot on each side. A total of 24 tiles are needed for the border.

  11. Name TG 4/26/06 Make sketches on grid paper to help you figure out how many tiles are needed for the borders of square pools with sides of length 1, 2, 3, 4, 6, and 10. Record your results in a table.

  12. Make sketches on grid paper to help you figure out how many tiles are needed for the borders of square pools with sides of length 1, 2, 3, 4, 6, and 10. Record your results in a table.

  13. Tiling Pools • Write an equation for the number of tiles, N, needed to form a border for a square pool with sides of s feet.

  14. Tiling Pools • Write a different equation for the number of tiles, N needed for the border of the pool with a side length of s feet.

  15. Tiling Pools • Is the relationship between the side length of the pool and the number of tiles linear, exponential, quadratic or none of the above?

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