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Front-End Estimation and Secret Number Challenge

This lesson focuses on understanding front-end estimation, a method that utilizes the leading digit of a number for quick calculations. Students will learn to estimate values effectively by analyzing the front digit in each number. The challenge involves finding a secret number by adding the largest whole number rounding to 50 and the smallest whole number rounding to 80. Additionally, students will practice multiplication by writing the 5 times tables up to 12. Engage in estimating and predicting to enhance problem-solving skills in mathematics.

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Front-End Estimation and Secret Number Challenge

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  1. WOD + POD WOD: • Estimate • To find out how much • Front-end Estimation • An estimation method that uses only the value of the front digit in each number.

  2. WOD + POD POD: • TO find this secret number, add the greatest whle number that rounds to 50 and the least number that rounds to 80. What is the secret number? Answer: 54+75=129

  3. WOD + POD MOD: • Write the 5 times tables to 12: • Example:

  4. MATH Class Outline: • Review Vocabulary • Review HW • Pgs. 74-75 • Complete 1-8 • Textbook/Practice Workbook/Notebook • HW: PW 4.4 Objectives: Solve problems using the strategy “Predict and Practice”. Anchors: • MA1

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