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Flowerbed Slabs Calculation Strategy

Learn to calculate the number of slabs needed for flowerbeds efficiently by breaking down the problem, tabulating results, finding patterns, and applying a formula. Solve the problem for 100 flowerbeds step by step.

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Flowerbed Slabs Calculation Strategy

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  1. FLOWERBEDS Here are four flowerbeds surrounded by slabs How many slabs would you need for 100 flowerbeds?

  2. STRATEGY • Break the problem into smaller pieces • Tabulate results • Look for patterns and why they occur • Find a formula • Solve the problem

  3. Break the problem into smaller pieces 1 Flowerbed has 8 slabs 2 Flowerbeds have 13 slabs Draw the diagrams for 3 and 4 flowerbeds

  4. Tabulate results 18 23

  5. …and why they occur Look for patterns… +5 +5 18 +5 23

  6. …and why they occur 8 +5 + 3 lots of 5 +5 +5

  7. Number of flowerbeds Number of slabs Input Output 1 8 2 13 3 18 4 23 x5 +3

  8. slabs = 5n + 3

  9. Solve the problem 100 flowerbeds? 503 slabs = 5n + 3 100 x 5 + 3 =

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