PASIG CITY SCIENCE HIGH SCHOOL
F. Legaspi St., Rainforest Park, Maybunga, Pasig City
No. ________ Name: ________________________________________ Score: _____________
Year and Section: ___________________________________________ Date: ______________
Activity #7
Principal Roots and Irrational Numbers
A. Determine whether the Principal Root of a number is Rational or Irrational.
1. √400 ______________________________
2. √46 ______________________________
3. √150 ______________________________
4. √169 ______________________________
5. √99 ______________________________
B. Determine between what two consecutive integers each principal root lie. Write your
answer on the space provided.
1. √26 ______________________________
2. √88 ______________________________
3. √39 ______________________________
4. √143 ______________________________
5. √3 ______________________________
C. Which country consumes the most chocolate per head? To answer that question, determine
between what particular range of integers the square root of each number lie and write the letter
in the box that corresponds to your answer.
PASIG CITY SCIENCE HIGH SCHOOL
F. Legaspi St., Rainforest Park, Maybunga, Pasig City
No. ________ Name: ________________________________________ Score: _____________
Year and Section: ___________________________________________ Date: ______________
Activity #8
Estimating the Square Roots of Whole Numbers and Plotting Irrational Numbers
A. Estimate each square root to the nearest hundredths.
1.
Step 1: Find the perfect squares closest
(less than and greater than) to the given
number.
Step 2: Make an educated guess to 1
decimal place and try it.
Step 3: Decide which is closer.
2.
Step 1: Find the perfect squares closest
(less than and greater than) to the given
number.
Step 2: Make an educated guess to 1
decimal place and try it.
Step 3: Decide which is closer.
3.
Step 1: Find the perfect squares closest
(less than and greater than) to the given
number.
Step 2: Make an educated guess to 1
decimal place and try it.
Step 3: Decide which is closer.
4.
Step 1: Find the perfect squares closest
(less than and greater than) to the given
number.
Step 2: Make an educated guess to 1
decimal place and try it.
Step 3: Decide which is closer.
B. Estimate the given square root and find the letter that corresponds to it at the number line.
C. Plot the points on a number line.
D. Identify which of the following illustrates the correct graph of a square roots. Cross out the
box of the wrong answer.