Estimating Radicals

Mr. Crosby's Class

Estimating Radicals to the nearest whole number

  • If a number has a radical and is not a perfect square:

    • Find the 2 closest perfect squares to the number is question (1 higher, 1 lower)

    • Examine the numbers to see which perfect square is closer to the original numbers (can do this by finding the difference)

    • What is the square root of the number that is closest?
Big image

Estimating Radicals to nearest decimal

  • Use calculator to find the square root of the number

    • Look for the button that has the radical symbol.

  • Round square root to appropriate decimal place.
Big image
Big image
Big image