Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
Square Roots / Estimating Square Roots
is the principal square root is the negative square root
is read plus or minus and refers to both
***You can NEVER take a square root of a negative number. The
negative can not be under the radical. √-16
is equivalent to 1
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
Estimating Square Roots to the Nearest Tenth
1. Determine what two perfect squares that the number is in
between.
√13
√9
√13
√16
2. Determine the whole number by using the perfect squares.
√13 is between 3 and 4
3. To find the numerator, find the difference between the lower
perfect square and the square root that you are trying to find.
√13
√9
=4
4. To find the denominator, find the difference between the least
perfect square and the greatest perfect square.
√9
√16
=7
5. Make a mixed number out of the information.
3 4/7
6. Divide the fraction to determine the nearest tenth.
2
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
√27
3
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
√68
4
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
√113
5
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
Estimate each square root to the nearest tenth. Show ALL work!!
6
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
Warm up 1. If you have not finished the real number puzzle, you have
about 10 minutes to finish it.
2. If you are done with your puzzle, work on Weekly Math for
10 minutes.
3. Get out one sheet of paper with your name on it.
7
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
8
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
9
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
10
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
11
Estimating Square Roots to the Nearest Tenth.notebook
September 23, 2015
12