Math Problem Statement

√256 in division method square root

Solution

To find the square root of 256 using the division method (also known as the long division method), follow these steps:

Step 1: Group the Digits

  • Start by pairing the digits of 256 from right to left. In this case, since 256 has three digits, we group them as (2)(56).

Step 2: Find the Largest Number Whose Square is Less Than or Equal to the First Group

  • Consider the first group, which is 2.
  • The largest number whose square is less than or equal to 2 is 1 (since 12=11^2 = 1).

Step 3: Subtract and Bring Down the Next Group

  • Write 1 as the divisor and the quotient. Subtract 121^2 from 2: 21=12 - 1 = 1
  • Now bring down the next group, which is 56, to get 156.

Step 4: Find a New Divisor

  • Double the quotient (1) to get 2. Write 2 in front of a blank space (which will be filled with a digit from 0 to 9) to create the new divisor: 2_.
  • Find the largest digit (X) such that when X is placed in the blank, 2X multiplied by X gives a product less than or equal to 156.
  • The digit that works here is 6, since 26×6=15626 \times 6 = 156.

Step 5: Complete the Division

  • Subtract 156156 from 156156 to get 0. The quotient is 16, which is the square root of 256.

Final Answer:

256=16\sqrt{256} = 16

Would you like a more detailed explanation or have any other questions?

Here are some related questions:

  1. How do you find square roots using the prime factorization method?
  2. Can you explain the concept of perfect squares?
  3. How does the long division method differ for non-perfect squares?
  4. How do you approximate square roots using the division method?
  5. What is the relationship between square roots and exponents?

Tip: When dealing with square roots of perfect squares, practicing the division method helps reinforce your understanding of basic arithmetic operations.

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Math Problem Analysis

Mathematical Concepts

Square Roots
Long Division Method

Formulas

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Theorems

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Suitable Grade Level

Grades 6-8